Here's my contribution:
Manufacturer: TEAC
Type: CD-ROM
Model: CD-532S
Accurate Stream: Yes
Caching: No
C2 Error Info: No
Overread: None
Sample Offset: +258
Firmware: 3.0A
Manufacturer: TOSHIBA
Type: DVD-ROM
Model: SD-M1401
Accurate Stream: Yes
Caching: No
C2 Error Info: Yes
Overread: None
Sample Offset: +252
Firmware: 1008
Manufacturer: RICOH
Type: MP6200S
Model:
Accurate Stream: Yes
Caching: No
C2 Error Info: Yes
Overread: None
Sample Offset: +253
Firmware: 2.40
The Ricoh drive is a CD-RW, and has a long history of acting weird.
The read offsets seem remarkably similar, i used Tracy Chapman to detect them.
I've not thoroughly tested the C2 feature of the Ricoh drive, it works for the Toshiba though.