reading GDs with a dvd drive

Post by **Quzar** » Sun May 15, 2005 12:26 am

I just wanted to know if anyone could give any legitamacy to this discussion:

http://www.emutalk.net/showthread.php?t=25684

to me it just seems like a really warezy discussion with one person saying he has all this stuff working and a bunch of others asking how.

Moi · Post by **Moi** » Sun May 15, 2005 8:36 am

I can confirm this working. I could rip the Tony Hawk's Pro Skater 2 from a demo GD once but I've stoped testing ripping after my cdrom drive broke.
The whole process costs a lot of time and not many drives work with this method though.

doragasu · Post by **doragasu** » Sun May 15, 2005 5:28 pm

I was able to read about 4 megabytes (the IP.BIN, TOC and something more) of my RE:CV disc 1 with a simple CD-ROM drive some years ago, but I was far from reading the entire disc because I was always getting read errors. I suppose with a better unit (a good DVD-ROM reader) it should work. Anyway, we are not supposed to talk about this, are we?

Post by **Quzar** » Mon May 16, 2005 3:27 am

the first i think 4mb exactly are the normal data mode section. so you should have been able to read that with any CD-rom drive.

doragasu · Post by **doragasu** » Mon May 16, 2005 3:24 pm

quzar wrote:the first i think 4mb exactly are the normal data mode section. so you should have been able to read that with any CD-rom drive.

Read more carefully... I wrote I have read the IP.BIN file, and I made it with CDRWIN starting from LBA 45000. And to clear all doubts, in the TOC I could perfectly see the names of the files in the game. I still have the file in my HD, I have just looked at it with an Hex editor, it's only 1,95 megs and starts with the string "SEGA SEGAKATANA SEGA ENTERPRISES BCC GD-ROM2/2 E 0799A00" etc etc etc, just like IP.BIN files. I can also see references to "CRI CD CRAFT VER.2.32" thay I suppose is the CD mastering tool (I really don't know, but this string is where CDRECORD put's its reference) and then at offset 0xA065 I can see the reference to the first file of the TOC: it's "1ST_READ.BIN", followed by "ADV.AFS", "BGM.AFS", "COMMON.MLT", etc.

EDIT: There's a curious thing in this file, from offset 0xB47C to the end of the file it has only zeros.