Search found 4 matches

by kurayamino
Sun Nov 01, 2020 8:27 pm
Forum: UHD discs
Topic: Back To The Future Part III UK Copy Not Working At All
Replies: 5
Views: 1783

Re: Back To The Future Part III UK Copy Not Working At All

Wipe the discs down with 99% isopropyl alcohol on ultra soft toilet paper. Do a final pass with a microfiber cloth then try again.
by kurayamino
Fri Oct 23, 2020 6:57 am
Forum: UHD discs
Topic: Back to the Future won't read on my ASUS drive
Replies: 42
Views: 16200

Re: Back to the Future won't read on my ASUS drive

This isn't a firmware or drive problem. There is a thin film on the bottom of the discs left over from the manufacturing process which causes these read errors. I put some 99% isopropyl alcohol on soft toilet paper and carefully but firmly wiped across the bottom of the discs. After the alcohol evap...
by kurayamino
Mon Sep 21, 2020 5:27 am
Forum: LibreDrive drives
Topic: an offtopic question - physical data location on the disc
Replies: 9
Views: 5308

Re: an offtopic question - physical data location on the disc

I don't see different AUN start/end values when I specify different layers in the CDB at offset 6. Super hacky POC code attached -- have I done something wrong?
by kurayamino
Sun Sep 06, 2020 2:26 am
Forum: LibreDrive drives
Topic: an offtopic question - physical data location on the disc
Replies: 9
Views: 5308

Re: an offtopic question - physical data location on the disc

A careful analysis of the ioctl entry point in a drive's firmware might lead to something interesting. Even if this results in a semi-drive-specific solution, programmers are lazy and probably reuse much of the same code between drive generations. You might discover a Renesas or MTK specific ioctl w...