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Appeared on: Monday, January 5, 2004
Philips JackRabbit4

1. Specs - Installation

Philips JackRabbit4 DVD+RW recorder - Page 1

After the three previous drives from the same series, the new Jack Rabbit 4 is a long awaited external drive delivering a new element in its specifications, namely DVD+R/RW recording. According to the manufacturer, the drive supports 4x DVD+R and 2.4x DVD+RW writing. Of course, Philips JR4DVDRW is still a CD recorder, with supported speeds of 16x and 10x for CD-R and CD-RW respectively. While as a reader, the drive can easily read DVD at the speed of 8x and CD at 40x. Below are presented analytically, the specifications for the new drive as they have been declared by the manufacturer.

- Specifications
Drive interface
USB 2.0 - Hi-Speed USB
Storage capacity
Up to 700MB for CD and up to 4.7GB for DVD
Speeds on CD
16x Write on aCD-R
10x ReWrite
40x Read
Speeds on DVD
4x Write on a DVD+R
2.4x ReWrite on a DVD+RW
8x Read on a DVD-ROM
Data buffer capacity
2 MB
Random access time
Average 120ms (typical)
Compatibility for writnig
All popular DVD+R/+RW formats and all popular CD-R/RW formats
Write method
Supports Fixed Packet, Variable Packet, TAO, SAO, DAO, Raw Mode Burning & Over-Burn writing
Compatibility for reading
All popular DVD-ROM, DVD+R/+RW/, DVD-R/-RW formats
All popular CD-R/RW formats
All MP3-CD, Audio-CD and Photo CD (jpg) formats
Supported Operating System
Windows 98SE / Millenium / 2000 / XP

Bellow is a screen shot from Nero Info Tool with some information about the drive.

The drive uses a 2MB buffer and supports RAW DAO 96 writing (CD). Mount Rainier is not compatible with the drive. It reads all formats except for DVD-RAM.

As with most drives, Jack Rabbit uses the RPC II region control, allowing a user to change the drive's region at most 5 times. For our tests, we set the region code to 2 (Europe).

- The drive

All input output connections jacks are located on the left hand side. From left to the right (see photo below), there is the power input, the digital audio output, USB connector, the headphones jack, the analogue audio output, the S-Video output and the Video output (CVBS).

- Retail Package

Philips' retail package includes Ahead's Nero suite of programmes on one CD- ROM.





In the same CD are also included drivers for the JR4 and warranty information in PDF.

It also includes all the appropriate cables required for connecting the drive to just about any type of home audio/visual equipment- usb cable, digital audio cable, analog audio cable, s-video cable, and composite video cable. There is also a "How To" booklet, a remote control unit with batteries, power pack.

The booklet has a number of sections, each describing in a step-by-step manner, how to connect the drive to a tv, listen to music, etc. As a standalone device (i.e. when connected to your stereo or tv and not a PC), the drive is capable of mp3 playback and picture CD display.

- Installation

We connected the Philips JR4DVDRW to our test PC where it was identified as "PHILIPS JR4DVDRW", under WinXP. All tests were done with firmware revision v3.00.

The following pages include the test results of the Philips drive in comparison with the Pioneer DVR-SK12D. The Pioneer is a dual DVD recorder, and we consider that a typical comparison would make our tests more interesting.

2. Data CD Reading Tests

Philips JackRabbit4 DVD+RW recorder - Page 2

Data CD Reading Tests

- Pressed CD results (Click for CDSpeed results)

As can be seen from the table above, the Philips JR4DVDRW was faster than the Pioneer DVR-SK12D used here for comparison, and in fact a good deal faster. The End Speed for the Philips drive confirms the manufacturer's stated maxixmum in the specifications (40x), reaching a final reading speed of 42.56x.

Unfortunately the Philips drive was not compatible with CDSpeed's seek times test, neither with the latest version nor with older versions. As such, we cannot present seek times against those of the Pioneer for comparison purposes. For this reason, we present access times, measured again with CDSpeed.


- CD-R Media results (Click for CDSpeed results)

In this test, we copied the pressed disc used in the previous test onto CDR media, in order to check the reading behaviour of drive with CDR media and to also check if there is a difference in comparison with the original pressed CD.

Both drives returned result almost identical to those of the previous test. Once again, the Philips drive was much faster than Pioneer.

On the left are the access times for the Philips drive, which are almost the same for both read tests with pressed and CDR media.




- ReWritable Media (Click for CDSpeed results)

For this test we used 24x High Speed rewritable media from Mitsubishi Chemicals.

The Philips drive also showed the same, good performance with RW media. Again, the Pioneer drive had lower speeds with this media too.

3. CD Error Correction Tests

Philips JackRabbit4 DVD+RW recorder - Page 3

CD Error Correction Tests

In the following tests we check the drive's behaviour when reading scratched / defective audio discs. The test discs used were the ABEX series from ALMEDIO.


Errors total
Num: 985862
Errors (Loudness) dB(A)
Num: 51899
Avg: -60.5 dB(A)
Max: -11.3 dB(A)
Error Muting Samples
Num: 3012
Avg: 1.8 Samples
Max: 1140 Samples
Skips Samples
Num: 0
Avg: 0 Samples
Max: 0 Samples
Total Test Result
76.5 points (out of 100.0 maximum)

The Philips drive did not present any particular problems during this test, producing acceptable results, although the maximum loudness error level is such that it makes us believe that it could lead to audible clicks. The total score of 76.5 however, is quite good.

- ABEX TCD-726

Errors total
Num: 0
Errors (Loudness) dB(A)
Avg: -94.0 dB(A)
Max: -87.6 dB(A)
Error Muting Samples
Num: 0
Avg: 0.0 Samples
Max: 0 Samples
Skips Samples
Num: 1
Avg: 185 Samples
Max: 185 Samples
Total Test Result
83.6 points (out of 100.0 maximum)

The Abex TCD-726 test disc is much easier for drives in general to read, and here the Philips drive performed better in comparison to the previous test disc. One sample was skipped. The score of 83.6 is good although we have come to expect better.

- CD-Check Audio Test Disc

The CD-Check Test Disc is a very useful tool for evaluating the Sound Reproduction / Error correction capabilities of a CD player. The disc offers a signal combination with disc error patterns to rate the drive's abilities to read music and reproduce it completely. Five tracks on the disc contain a sequence of progressively more difficult tests. These tracks are referred to as Check Level-1 through Check Level-5.

The tracks are reproduced (played) through a software multimedia player (i.e. Windows Media Player). Each level is considered as passed, if the tone coming out from the speakers is smooth, continuous without interruptions, skipping or looping. The higher the Check Level passed, the more reliable the sound reproduction of the tested drive.

Error Level
Philips JR4DVDRW

The Philips JR4DVDRW managed to playback successfully the first four tracks, which reveals that the drive has good error correction capability with audio discs. Although the the 5th check level was not read by the drive, we should mention that it contains a scratch with a size of 1.500 mm and is difficult to read for most drives.

- Summary

Test Disc
Reading Speed
Average Score

Combining the two scores from both of the ABEX tests, the Philips drive gives an average total score of 80 points out of 100. This is a good score, but it places the drive somewhere in the middle of the rankings.

4. DVD reading tests

Philips JackRabbit4 DVD+RW recorder - Page 4

DVD reading tests

- Single Layer DVD-ROM (Click for CDSpeed results)

In the DVD single layer read test, the Philips drive is faster than the Pioneer. The drive started the test at 4.91x and finished it at 11.21x with an average speed of 8.96x, while Pioneer had, for the same tasks, 3.38x, 8.16x and 6.07x respctively. The manufacturer's specifications for 8x DVD-ROM reading is confirmed, from the 8.96x average speed that the Philips drive shows in this test.

As in the CDR test, the same problem with the seek times measurements were faced here. For this reason we present the access times instead of seek times. The values we measured appear to be good.



- Dual Layer PTP DVD-ROM (Click for CDSpeed results)

The two layers of a PTP DVD-ROM disc are read sequentially with the drive starting the read process from the inner tracks on the disc, which is the beginning of each layer, and progressing outwards towards to the outer tracks for each layer.

Once again, the Philips JR4DVDRW was faster than the Pioneer DVR-SK12D. As we can see from the graph above the difference was at least 1x faster for Philips each time.

In comparison with the single layer disc, in the previous test, the access times are slightly increased. We consider that the 243 ms value for full access should be better.


- Dual Layer OTP DVD-ROM

The first layer of an OTP dual layer DVD-ROM is read exactly the same way as the first layer of the PTP disc we tested previously. The difference here is the reading strategy of the second layer on the disc. The beginning of the second layer is located in the outer part of the disc, so the drive starts reading from the outer tracks inwards towards the inner tracks of the disc.


As is usual with most drives, the first layer was read almost flawlessly with only a slight glitch near the end. The second layer was also read relatively smoothly and the resultant output is an almost symmetric graph.

- DVD Ripping Tests

We measured the DVD-Video ripping speed of the Philips JR4DVDRW using the latest version of DVD Decrypter software. The DVD Video title was the "Matrix" pressed DVD-Video.

The drive ripped the DVD movie files to our hard disk at a tranfer rate of 8165 KB/s average. The performance is very good, with the transfer speed being almost double that of the Pioneer drive.

- DVD Recordable / Rewritable reading Tests

The chart below shows the Nero CDSpeed results with the following media:

You will notice from the graph above that no matter what the media format, the Philips drive performed fast, producing more that double the speed of the Pioneer in all cases.

5. DVD Error Correction Tests

Philips JackRabbit4 DVD+RW recorder - Page 5

DVD Error Correction Tests

In the following tests we examined the DVD reading capabilities of the Philips JR4DVDRW drive with scratched / defective DVD media. For the tests we used Nero CDSpeed. The reference test media came from ALMEDIO.

We also tried to check the same discs with the CDVD Benchmark software but encountered problems.

- Single Layer media

This is a single sided, single layer DVD-ROM with 4.7GB capacity, and its surface has an artificial scratch of dimensions varying from 0.4 to 3.0 mm.

As we can see from the CDSpeed screen shot above, the Philips drive managed to read the contents of the defective area without reporting any problems. Notice the speed at the second half of the disc, is the same with this one at the reading test with the normal disc.


This is also a single sided, single layer DVD-ROM of 4.7GB capacity. The data structure of the disc is exactly the same as that of the TDR-821, with the difference that there are no scratches on the surface and instead defective areas ranging in dimensions from 0.5 to 1.1 mm. There are also fingerprints with height between 65 and 75 micrometers.

Once again the drive read the disc accurately, reaching for one more time it's maximum speed. The fluctuation towards the end of the disc is logical due to the artifial fingerprints.

- Dual Layer media

This is an 8.5GB dual layer, single sided DVD-ROM disc with artificial scratches of dimensions ranging from 0.4 to 3.0mm, on both layers.

Both layers were read without any difficulties by the Philips drive. No error occured. The resultant output graph is quite smooth and symmetric.


This disc is a single sided, dual layer DVD-ROM disc with capacity of 8.5GB. The only difference between the TDR-845 and the TDR-841 is that the first includes both defective areas and fingerprints. The dimensions of the defective areas range from 0.5 to 1.1 mm and the fingerprints have height sized from 65 to 75 micrometres.

This disc was also not a problem for the drive, finishing without any errors.


The TDV-541 is a single sided, dual layer DVD-VIDEO disc, with a capacity of 8.5GB.The disc is based on the TDV-540 series which is designed for inspection and adjustment of DVD-VIDEO players. The disc checks the layer switch operation from layer 0 to layer 1 and also includes test pictures and test signals for DVD sound files. The current TDV-541 also checks the error correcting capabilities of the drive and includes scratches sized from 0.4 to 3.0 mm.

Looking at the output graph above, we can easily conclude that the error correction capabilities of the drive are very good. Some instantaneous drops in speed didn't affect reading.


The TDV-545 disc is based on the TDV-540 series. It is a single sided, dual layer Video/S-2 disc with a capacity of 8.5GB. The TDV-545 includes artificial black dots on the disc's surface, sized from 0.4 to 1.0 mm. It also has 65 - 75 micrometre high fingerprints.

In the following screen shot, you can see how easily the drive read the TDV-545 disc. No errors were reported.

6. Protected Disc Tests

Philips JackRabbit4 DVD+RW recorder - Page 6

Protected Disc Tests
- Reading Tests

To create an image of the various protected titles onto a hard disk, we used CloneCD v.v4.3.1.9 software and the appropriate settings, depending on the protection type of the inserted discs. Below are summarized the capabilities of Philips JR4DVDRW drive, according to CloneCD software.

The game titles we used for each protection scheme are given in the table below:

Game Title
Protection Scheme
PSX "NBA Jam Extreme"
Serious Sam The Second Encounter v1.07
SafeDisc v.2.60.052
VRally II
SecuROM v.2
PSX Pressed Media

SafeDisc v.2

SecuROM v.2

By taking a look at the three previous graphs we can see that no matter what the game type was, Philips performed very well, while also producing much faster tranfer rates than the Pioneer drive.

- Writing Tests

The Philips JR4DVDRW supports the DAO-RAW writing mode. For checking the drive's EFM correction status, we used 2 different game titles with different SafeDisc 2 versions with the latest software patches installed. After making the images of the various titles to the hard disk, we burned them (maximum speed) with CloneCD. Two different discs were created for each title; one with the "Amplify Weak Sectors" enabled and one more with the function disabled.

The table below shows the results of the attempted backups and whether they ran (game installed / played normally), or not.

Game Title
SD2 Build
Amplify Weak Sectors On
Amplify Weak Sectors Off
Philips JR4DVDRW
Max Payne
Serious Sam - The Second Encounter v1.07

As can easily be seen from the table above, the Philips drive could only create working backups of v2.51 game protection scheme.

7. AudioCD/DAE Tests

Philips JackRabbit4 DVD+RW recorder - Page 7

DAE Tests

- Pressed and CDR AudioCD results

In this test we test the Philips drive with CD-DA media.

According to CDSpeed the the reading started at 17.54x and finished at 40.99x with an average speed of 30.96x. For one more time we present the access times instead of the seek times.




Below is the average speed produced by CDDAE software, when we ripped the previous disc onto our hard disc. For comparison, we include the Pioneer DVR-SK12D drive for the same task.

The same pressed audio disc was copied onto CD-R media and was ripped again with CDDAE. Again the Philips drive was faster.

- Advanced DAE Quality

In the Nero CD Speed Advanced DAE test, Philips returned an average speed of 28.81, and a quality score of 100. CDSpeed reports that the drive can read CD Text and Subchannel Data but not Leadin and Leadout data.

- Support of 90/99mins AudioCDs

Supports both 90min and 99min discs.

- Reading/Ripping Protected AudioCDs

For the test procedure we used two audio discs with different audio protection schemes. We tested for both recognition and ripping to the hard disk. The software used was Exact Audio Copy.

* Pressed Audio disc protected by Sony Key2Audio (Celine Dion - New Day Has Come)

* Pressed Audio disc protected by Cactus Data Shield 200 (Natalie Imbruglia - White Lilies Island)

Philips JR4DVDRW
Pioneer DVR-SK12D

Both drives seem to have no problems with either ripping or playback of the two audio pressed discs and their protection schemes.

8. CD Recording Tests

Philips JackRabbit4 DVD+RW recorder- Page 8

CD Recording Tests

- CD-R Writing Tests

The Philips JR4DVDRW supports 8x, 12x and 16x CAV writing speeds. Below you can see the CDSpeed writing simulation graph with Taiyo Yuden 48x CD-R media.

According to CDSpeed, the average writing speed with an 80min disc was 15.96x. The start and the finish speeds were 15.89x and 16.12x respectively.




- Recording Times

For the burning tests we created an 80min data compilation with Nero Burning Rom and recorded the data on a 700MB disc. In this test Philips was faster than Pioneer by over 2 minutes although both had the same recording speed.

Below are the best writing times for 8x, 12x, 16x using 48x CDR media from Taiyo Yuden.

In the next graph are the times for several media brands recorded at 16x with the Philips JR4DVDRW.

All the discs we tried needed approximately the same time.

- CD-RW Writing Tests

The Philips JR4DVDRW supports 10x maximum rewriting speed, with High Speed rewritable media. Below are the results from the CDSpeed writing simulation test with blank 10x HS-RW media from Maxell.

According to CDSpeed burning simulation, the drive started writng at 9.85x and finished at 9.74x with an average speed of 9.89x.



In comparison with Pioneer, Philips was slower by only 4 seconds which is a negligible difference.

- Packet Writing Tests

Using InCD and Mitsubishi Chemicals 24x US-RW media for all Packet Writing tests, quick format took 32sec. The formatted disc had 530mbs of free space. We copied a 403 MB file (412.822 Kb) from Hard Disk (on the same PC as the recorder) to the formatted RW media through Windows explorer (drag and drop).

Philips JR4DVDRW
Pioneer DVR-sk12D
4:37 min ( 9.9x)
6:59 min ( 6.57x)
5:44 min ( 8x)
7:09 min ( 6.41x)

In both tasks Philips was faster than Pioneer. Notice however, that the difference is significant.

- Other features


Up to 88min with 800MB discs,

up to 82min with 700MB discs
CD text reading/writing

9. 3T Jitter Tests 1

Philips JackRabbit4 DVD+RW recorder - Page 9

Writing Quality Tests - 3T Jitter Tests

On an 80min 48X CD-R disc from Taiyo Yuden we burned the same AudioCD project at 8x, 12x, and 16x. The 3T Pit & Land Jitter graphs are presented here.

- 3T Pit results

The measurements we took from our machine revealed the great CD recording quality of the drive. The values are far below the Red Book Limit of 35nsec.

The average 3T Pit Jitter values for all recording speeds are illustrated in the following table.

As you can see the average measurements are very low, which means better writing quality at all speeds.

- 3T Land results

As with pit jitter, land jitter values are also quite low and below the Red Book limit of 35nsec.

And just to confirm it, the average jitter for all speeds presented in the graph below show just how low the values for land jitter were.

Recording Speed
Average 3T Pit Jitter (ns)
Average 3T Land Jitter (ns)
> 35ns
Max 3T jitter values (ns)
29 Pit, 33 Land
28 Pit, 30 Land
28 Pit, 29 Land
- Summary

Philips JR4DVDRW had very low jitter values in both Pit and Land. The drive shows an ability to burn discs at maximum speed and high quality.

The following page where we check the jitter levels produced on various manufacturers discs, should give a better indication of the writing quality level of the drive.

10. 3T Jitter Tests 2

Philips JackRabbit4 DVD+RW recorder - Page 10

Writing Quality Tests - 3T Jitter Tests

Here we used 80min CD-R media from various manufacturers and burned the same AudioCD project at 16x. The following graphs show the 3T Pit & Land Jitter results.

- 3T Pit results

All media brands we tried revealed high writing quality for the drive. Only HiSpace gave slightly increased values while all other media were rather low. Check the performance with Ritek.

The average 3T Jitter values for all manufacturers discs are illustrated in the following graph. Here you can see that all values are bellow the Red Book Limit.

- 3T Land results

Once again the measurements were very low with all media brands used.

The average values presented below confirm the ability of the Philips drive to burn CD's at high quality. Notice that the average values are almost the same with the 3T Pit jitter ones from the previous, similar graph.

Recording Speed
Average 3T Pit Jitter (ns)
Average 3T Land Jitter (ns)
> 35ns
Max 3T jitter values (ns)
Ritek 40x
24 Pit, 24 Land
MAM 48x
28 Pit, 28 Land
Fujifilm 40x
28 Pit, 31 Land
Hi-Space 40x
34 Pit, 33 Land
SKC 48x
29 Pit, 30 Land
- Summary

Ending this set of tests, we can easily conclude, for one more time, that although the drive is not as fast as it could be, it is an excellent recorder.

11. C1 / C2 Error Measurements

Philips JackRabbit4 DVD+RW recorder - Page 11

Writing Quality Tests - C1 / C2 Error Measurements

The C1 / C2 error rate was measured for the recorded discs burned during the previous writing tests (jitter). The software we used was UMDoctor Pro II, and the reader the Optorite DD0203 drive.


  • Ritek 40x recorded at 16x

  • MAM 48x recorded at 16x

  • SKC 48x recorded at 16x

  • Hi-Space 52x recorded at 16x

Below is presented information on the CD-R media used in this test.

ID Code
Taiyo Yuden 48X
TaiyoYuden 97m24s01f
Fujifilm 40x
Fuji 97m:26s45f
Ritek 40x
Fuji 97m26s45f
MAM 48x
Mitsui 97m27s58f
Hi-Space 52X
MPO 97m25s07f
SKC 97m26s26f
- Summary

The results are very good. No C2 error were reported and the C1 levels were all very low confirming the results obtained from the previous quality tests.

12. DVD Recording Tests

Philips JackRabbit4 DVD+RW recorder - Page 12

DVD Recording Tests

- Writing Performance

Philips JR4DVDRW supports only DVD+R/RW writing. The maximum supported speed for DVD+R is 4x and 2.4x CLV for DVD+RW media.

4x DVD+R

In order to see the writing strategy of the drive, we burned onto media from Mitsubishi Chemicals using CDSpeed and it's "Create Data CD".

The test confirmed the manufacturer's specifications for 4x DVD+R recording. Starting speed was 3.71x and end speed 4x with an average writing speed of 3.92x.

Below is the CDSpeed screenshot from a 4x DVD+R disc from Mitsubishi Chemicals.

2.4x DVD+RW

From to the screen shot on the left, produced by CDSpeed, we can see that once again the drive performed as was expected, according to its specifications.

The average recording speed in this test was 2.36x

Below is a CDSpeed screenshot with a 2.4x DVD+R disc from Philips.


- Burning Tests

The best recording times are illustrated in the following table after burning 4315MB of data on various DVD+R, DVD+RW media, using the maximum allowed writing speed for each disc. For comparison, we also include the writing times of the Pioneert DVR-SK12d drive.

With DVD+R media Philips is much faster than Pioneer. Notice once again that the Pioneer drive supports 2.4x recording speed at this format. For the DVD+RW format, the Pioneer supports the same speed as the Philips. The Pioneer drive needed around a minute less to complete the same task.

The following screenshot was taken from Nero, after successful burnings with Mitsubishi 4x DVD+R and Philips 2.4x DVD+RW media. The amount of data is the same for all the tests.


Disc Label
Disc Information
Writing Speed
Mitsubishi Chemicals 4x DVD+R
MCC 002
Philips 4x DVD+R
HiSpace 4x DVD+R
Philips 2.4x DVD+RW
Sentinel 2.4x DVD+RW

The table above presents the writing speeds of the drive for the various media formats.

- Packet Writing Tests
Philips JR4DVDRW
Pioneer DVR-SK12D
4:14 min ( 1.2x)
4:35 min / 1.1X
2:33 min ( 1.99x)
8:19 min / 0.61X

13. PI/PO Error Measurements

Philips JackRabbit4 DVD+RW recorder - Page 13

KProbe PI/PO quality results

The following screenshots show the PI/PO scans for the various DVD+R/RW media, recorded with Philips JR4DVDRW at the maximum allowed speed.

The software used for the measurements was the KProbe v1.1.26, and the reader was LiteOn LDW-811s. The specific methodology is very dependent on the drive used as a reader, while the reliability of the PI/PO provided output is also not technically confirmed. Hence as a result, we cannot safely come up with conclusive results, although we do make a comparison of the drive's behaviour when using various DVD recordable/rewritable media.

The recordable discs used came from Philips, Mitsubishi Chemicals, Sentinel, TDK and HiSpace. Further details about each disc type are presented at the bottom of this page.

Mitsubishi Chemicals 4x DVD+R
MCC 002
Philips 4x DVD+R
HiSpace 4x DVD+R
Philips 2.4x DVD+RW
Sentinel 2.4x DVD+RW
- Summary

As is self evident, the Philips drive is a very good DVD recorder with high quality, since all the PI/PO values remained at low levels.

14. Stand Alone DVD Player

Philips JackRabbit4 DVD+RW recorder - Page 14

Stand alone player

We also test the Philips JR4DVDRW as an stand alone player. As soon as I connected the device onto TV, I saw the screen on the left.

I also connect the JR4 on my AV receiver, in the digital input, since Philips provides you with the appropriate output for excellent, digital multi channel audio ( DTS 5.1ch) .

All the discs that i tried to play, playbacked successfully, no matter what the media format or brand were.

Bellow, just for mention reasons, are gathered all the menu screens, for you to see all the provided settings. Notice that you can change most of the settings during the movie playback.


Notice that the device is also remote controlled. We would like the remote control to had less delay and better feel and thus numbered buttons for faster chapter change, but don't forget that JR4 is mostly a DVD recorder and not a genuine stand alone player.

We didn't find out any specific problems for the JR4 as a stand alone player except the heat that the device develops, probably because of its compact dimensions. We didn't have the opportunity to check it in season with highest temperatures, so we cannot say if it is a problem or not.

15. Conclusion

Philips JackRabbit4 DVD+RW recorder - Page 15




  • Complete retail package
  • Good CD-R/RW/DVD-ROM/DVD±R/RW reading performance
  • High error correction with defective / scratched DVD media
  • High reading accuracy with defective DVD media
  • 30x max DAE
  • Very Good DVD/CD writing quality
  • High DVD-Video ripping speed
  • Supports CD-Text (reading/writing)
  • Supports 99min audio discs
  • Very good stand alone player
  • Digital audio output
  • Cannot create working backups of SafeDisc versions greater than v.2.50
  • CD writing could be faster
  • Mount Rainier is not supported
  • There is no IEEE 1394 connector
  • Doesn't support overburning
  • The error correction for CD media could be better

The drive generally performed very well. As a CD/DVD reader, it is very fast achieving high speeds. Our confirmed speeds of 40x, 12x and 8x for CD-R/RW, DVD single layer and DVD dual layer respectively are similar to those achieved by an internal drive.

The writing speeds of the Philips JR4DVDRW are also very good, exhibiting excellent writing quality for both CD and DVD. All the measurement that we carried out showed low C1 and PI/PO values while no C2 error were reported. The 4x and 2.4x for DVD+R and +RW are normal. On the other hand, we would like a higher speed for CD, since the supported 16x and 10x are barely acceptable.

The JR4 drive's error correction capabilities are good for CDs and very good for DVD's. The drive managed to read accurately all of our defective DVD test discs, overcoming even the 3mm wide defective area. With the CD test, while the drive performed well, it could have been better, especially with the Abex test discs.

The Philips drive can easily handle SecuRom v2 and SafeDisc v2.51 games protections. However the latest's version of SafeDisc are not supported by the drive which is a minor problem.

The drive can also handle Key2Audio and CDS200 protection schemes for audio CD's, as well as ripping and playback of 90/99min discs.

Another commendable feature of the Philips drive is its ability to operate as a stand alone player. Every media we tried, pressed DVD, DVD-R/RW and DVD+R/RW played successfully from the drive without any problems occurring. Add the remote control and you have a complete player.

One feature missing is the firewire interface connection to go along with the USB.

We feel that the JR4 recorder is a good purchase and it will cover the needs of buyers for both home and office. The price has not been currently announced since the drive is not as yet available on the market. We believe that at a good price, it will be a very attractive purchase.

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