Breaking News

Synology Unveils DiskStation DS225 Plus New PS5 system update beta previews DualSense wireless controller pairing across multiple devices EnGenius Multi-Gigabit Switch Delivers 2.5G Performance with 90W PoE Viltrox’s AF 90mm F3.5 Lens for the DJI Inspire 3 EnGenius Announces Affordable ECW520 Access Point

logo

  • Share Us
    • Facebook
    • Twitter
  • Home
  • Home
  • News
  • Reviews
  • Essays
  • Forum
  • Legacy
  • About
    • Submit News

    • Contact Us
    • Privacy

    • Promotion
    • Advertise

    • RSS Feed
    • Site Map

Search form

Pacific Digital U-30201 (Mach-8)

Jan 14,2004 0

9. 3T Jitter Tests 1

 

Review Pages

1. Data CD Reading Tests
2. Specs - Installation
3. CD Error Correction Tests
4. DVD reading tests
5. DVD Error Correction Tests
6. Protected Disc Tests
7. AudioCD/DAE Tests
8. CD Recording Tests
9. 3T Jitter Tests 1
10. 3T Jitter Tests 2
11. C1 / C2 Error Measurements
12. DVD Recording Tests
13. PI/PO Error Measurements
14. Conclusion

 

Pacific Digital U-30201 DVD±RW recorder - Page 9

Writing Quality Tests - 3T Jitter Tests

On 80min 48X CD-R disc media from Taiyo Yuden we burned the same AudioCD project at 8x, 16x, 24x and 40x. The 3T Pit & Land Jitter graphs are presented here.

- 3T Pit results

The drive introduced high 3T pit jitter levels (i.e. above 35ns) with the specific media at all speeds. In general, there doesn't appear to be a speed that is more ideal than another. For example, at 40x while it is almost always above the 35nsec level, it doesn't exceed it by much and remains fairly constant, whereas at 24x it begins quite low and towards the end reaches 45nsec, which was also the highest level reached.

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

- 3T Land results

Land jitter on the other hand was very good with the exception being 40x which was the only speed to go above the Red Book limit of 35nsec. At all other speeds, the jitter was well within limits.

The average jitter for all speeds presented in the graph below show that the land jitter values w.

Recording Speed
Average 3T Pit Jitter (ns)
Average 3T Land Jitter (ns)
> 35ns
Max 3T jitter values (ns)
8X
33.59
30.05
No
32 Pit, 32 Land
16X
33.83
26.56
Yes
40 Pit, 29Land
24X
34.27
26.93
Yes
45 Pit, 29 Land
32X
33.44
29.20
Yes
41 Pit, 32 Land
40X
35.44
29.95
Yes
38 Pit, 38 Land
- Summary

The Pacific Digital U-30201 did not return good jitter values or at least not as good as we would have expected, considering that the LiteOn drive for the same set of tests was particularly good. The table above further shows that the drive did go over the 35nsec Red Book limit for all speeds excepting 8x.

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.

 

Review Pages

1. Data CD Reading Tests
2. Specs - Installation
3. CD Error Correction Tests
4. DVD reading tests
5. DVD Error Correction Tests
6. Protected Disc Tests
7. AudioCD/DAE Tests
8. CD Recording Tests
9. 3T Jitter Tests 1
10. 3T Jitter Tests 2
11. C1 / C2 Error Measurements
12. DVD Recording Tests
13. PI/PO Error Measurements
14. Conclusion

 

Pages

  • « first
  • ‹ previous
  • …
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • next ›
  • last »

Tags:
Previous Post
BTC DRW1008IM
Next Post
Media Quality Tests

Related Posts

Latest Reviews

Akaso 360 Action camera
Cameras

Akaso 360 Action camera

Crucial T710 2TB NVME SSD
PC components

Crucial T710 2TB NVME SSD

be quiet! Pure power 13M 750W
PC components

be quiet! Pure power 13M 750W

JSAUX 65Wh Rog Ally Battery
Gaming

JSAUX 65Wh Rog Ally Battery

Introducing PriceHub
Enterprise & IT

Introducing PriceHub

Popular News

COLORFUL Announces the Launch of the CVN Z790D5 ARK FROZEN Motherboard

COLORFUL Announces the Launch of the CVN Z790D5 ARK FROZEN Motherboard

AsRock, NZXT, Biostar and Gigabyte announces X870 motherboards

AsRock, NZXT, Biostar and Gigabyte announces X870 motherboards

COLORFUL Introduces CVN B850I GAMING FROZEN Motherboard

COLORFUL Introduces CVN B850I GAMING FROZEN Motherboard

COLORFUL Presents CVN X870 ARK FROZEN Motherboard for AMD Ryzen 9000 CPUs

COLORFUL Presents CVN X870 ARK FROZEN Motherboard for AMD Ryzen 9000 CPUs

COLORFUL Presents the B860 Series Motherboards

COLORFUL Presents the B860 Series Motherboards

COLORFUL, AsRock, NZXT, MSI announce Intel Z890 Motherboards

COLORFUL, AsRock, NZXT, MSI announce Intel Z890 Motherboards

Intel-AMD new motherboards announced

Intel-AMD new motherboards announced

COLORFUL Presents the COLORFIRE B650M-MEOW WIFI Motherboard, Supports AMD Ryzen 9000 Series CPUs

COLORFUL Presents the COLORFIRE B650M-MEOW WIFI Motherboard, Supports AMD Ryzen 9000 Series CPUs

Main menu

  • Home
  • News
  • Reviews
  • Essays
  • Forum
  • Legacy
  • About
    • Submit News

    • Contact Us
    • Privacy

    • Promotion
    • Advertise

    • RSS Feed
    • Site Map
  • About
  • Privacy
  • Contact Us
  • Promotional Opportunities @ CdrInfo.com
  • Advertise on out site
  • Submit your News to our site
  • RSS Feed