Test Media
3. ABEX TDR Series
Review Pages
Test Media - Page 3
ABEX TDR Series
1. Purpose
ABEX TDR Series discs are designed for DVD-ROM drives. These discs can be used for evaluation of DVD-ROM performances such as data reading capability, access time, and so on. The construction and formula of data in this disc is clearly specified, so that you can confirm whether data has been read correctly. This is done by comparing the sector address and data on a specified sector with known data. No file structure (UDF file format) exists in this disc, so that we can use this disc for many different purposes.
2. Disc specifications
2.1. Disc Parameter
|
Disc Type
|
TDR-820A
|
TDR-840
|
|
Disc structure
|
Single Sided Single Layer
|
Single Sided Dual Layer Parallel track
path
|
|
Capacity
|
4.7Gbyte
|
8.54Gbyte
|
|
Scanning velocity
|
3.49m/sec
|
3.84m/sec
|
2.2. Data format
|
ID
|
IED
|
CPR-MAI
|
User Data
|
EDC
|
|
4
|
2
|
6
|
2048
|
4Byte
|
3. The construction of user data
This data consists of the following six types:
- Sector number data (start sector address , from 03 00 00h)
- Sector number data (start sector address, from 00 00 00h)
- ECC block number data
- "ABEXDVD" character data
- M-Sequence data
- Check sum data
3.1. Contents of the data sector
|
ID
|
Sector information + sector number
|
4 Bytes
|
|
IED
|
ID error detection code
|
2 Bytes
|
|
CPR-MAI
|
Copyright management information
|
6 Bytes
|
|
User data
|
Test data
|
2.048 Byte
|
|
EDC
|
Error detection code
|
4 Bytes
|
|
TDR-820A: Sector address
|
03 00 00h through 25 FF FFh
|
|
TDR-840: Sector address
|
Layer 0: 03 00 00h through 22 D0 5Fh
|
|
Layer 1: 22 D0 60h through 42 A0 BFh
|
SINGLE LAYER DISCS (the TDR-820A is the base disc for all test discs in this series)
The TDR-821 contains scratches with the following characteristics
|
Width of Scratch
|
Address No. (hex)
|
|
0.4mm
|
05363A
|
|
0.6mm
|
06866C
|
|
0.8mm
|
07CEC0
|
|
1.0mm
|
0929A5
|
|
1.2mm
|
0A971B
|
|
1.4mm
|
0BF481
|
|
1.6mm
|
0D3166
|
|
1.8mm
|
0E6D9E
|
|
2.0mm
|
0F8E67
|
|
2.2mm
|
10D1F0
|
|
2.4mm
|
12636F
|
|
2.6mm
|
13E734
|
|
2.8mm
|
154C11
|
|
3.0mm
|
175F96
|
The TDR-825 contains defects with the following characteristics
|
Description
|
Address No. (hex)
|
|
0.5mm black band
|
07E0A6
|
|
0.7mm black band
|
097BD8
|
|
0.8mm black band
|
0B30BD
|
|
0.9mm black band
|
0CFF55
|
|
1.0mm black band
|
0EE7A1
|
|
1.1mm black band
|
10E99F
|
|
ø 65micro meter fingerprints
|
158330
|
|
ø 75micro meter fingerprints
|
186E16
|
DUAL LAYER DISCS (the TDR-840A is the base disc for all test discs in this series)
The TDR-841 contains scratches with the following characteristics:
|
Width of Scratch
|
Address No. (hex)
|
|
|
Layer 0
|
Layer 1
|
|
|
0.4mm
|
0503C8
|
24D428
|
|
0.6mm
|
063508
|
260568
|
|
0.8mm
|
075F23
|
272F83
|
|
1.0mm
|
089A1A
|
286A7A
|
|
1.2mm
|
09E5ED
|
29B64D
|
|
1.4mm
|
0B232A
|
2AF38A
|
|
1.6mm
|
0C42E3
|
2C1343
|
|
1.8mm
|
0D6200
|
2D3260
|
|
2.0mm
|
0E6834
|
2E3894
|
|
2.2mm
|
0F8DF5
|
2F5E55
|
|
2.4mm
|
10FA7F
|
30CADF
|
|
2.6mm
|
125A93
|
322AF3
|
|
2.8mm
|
139E97
|
336EF7
|
|
3.0mm
|
15812F
|
35518F |
Below is a picture of the ABEX TDR-841 series:
After zooming over the scratch we can see the details:
The TDR-845 contains defects with the following characteristics:
|
Description
|
Address No. (hex)
|
|
|
Layer 0
|
Layer 1
|
|
|
0.5mm black band
|
076F64
|
273FC4
|
|
0.7mm black band
|
08E4BC
|
28B51C
|
|
0.8mm black band
|
0A716A
|
2A41CA
|
|
0.9mm black band
|
0C156E
|
2BE5CE
|
|
1.0mm black band
|
0DD0C7
|
2DA127
|
|
1.1mm black band
|
0FA376
|
2F73D6
|
|
ø 65micro meter fingerprints
|
13D0A3
|
33A103
|
|
ø 75micro meter fingerprints
|
1676C9
|
364729
|
A closer look over the black band and fingerprints:
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