Hey guys 2 simple questions

[ghost]

I don't see anything relevant to the wiki.

1. What are the SBI files used for? They are not in the dat. Can I use them to fix ISOs? Are they part of the copy protection?

2. The securom sectors, can I use them to fix ISOs? They are only 10 columns instead of 16 so how do I do that?

[user7]

sometimes required for copy protection, such as libcrypt for PSX. see here for downloading: https://redump.info/downloads/

not sure what's up with the PC ones...

[Jackal]

SBI files are used to store the modified sectors in Q-subchannels (the ones that are shown on the disc page). They are indeed part of the LibCrypt / SecuROM copy protection, but they are separate from the main channel data, so you can't use it to fix anything.
There are some tools that can convert .cue/.bin/.sbi to .ccd/.img/.sub to create working backups. It won't work for newer SecuROM versions because those also rely on "Data position measurement".

[user7]

Does redump have those dpm discs flagged? Redump still needs to figure out how to handle those...

[reentrant]

An attempt to dump DPM data from SecuROM DVD has been documented here: /viewtopic.php?t=12490 … l-120-dpm/

[ghost]

ok thanks. And what am I supposed to do with this?
https://postimg.cc/cK6Dtycv
can i fix anything?

[Jackal]

ok thanks. And what am I supposed to do with this?
https://postimg.cc/cK6Dtycv
can i fix anything?

you could use it to fix an "empty"/generated .sub file so that it includes the LibCrypt/SecuROM data, either by manually adding the modified (red colored) bytes in the .sub with a hex editor, or by downloading the .sbi and using a tool like sbi2sub.