DVD sector size on KREON drives

Question

DVD sector size on KREON drives

Closed this issue 9 months ago · 3 comments

Is incorrectly reported if using SCSI READ_CAPACITY
Prioritize size calculation from DVD physical structures, if structures are not reported (some lame drives), fallback to READ_CAPACITY.

Answer 1 · 2023-12-11T20:55:50.000Z

According to claunia, the value being returned is not the equivalent of -1. The value is the equivalent of -16973820

Answer 2 · 2023-12-11T21:01:14.000Z

Another tidbit that may help: "being a normal DVD maybe the Kreon is trying to read the second PFI from, well, a normal DVD block with normal data"

Answer 3 · 2023-12-11T21:02:34.000Z

Good to know, it's close to 24-bit signed integer and internally 24-bit value is using to report the structure size (might be related):
https://github.com/superg/redumper/blob/main/dvd/dvd_dump.ixx#L160