Has there been consideration to hack CD burner firmware to dump Dreamcast disks? I don’t think it’s all that difficult, assuming that the laser unit is capable of reading the high density area at all and the firmware is hackable.
These are the patches that’d be needed:
* If a disk’s first TOC has no B0 entry, the TOC has a sufficiently small A2 entry, and the TOC’s own timestamps in sub-Q use positive encoding (00:00:00 start rather than 99:59:74 end) fake that there is a B0 entry around 08:00:00 or so.
* If that condition is met, modify all MSF<->LBA conversions to consider 9x:xx:xx to be positive 90 minutes instead for standing for negative. Likewise, don’t reject invalid BCD ten-minute encodings like C2:00:00.
* When seeking, adjust the calculation of where to move the laser head if past 08:00:00 according to the higher density.
* Allow CD audio read command on data tracks. This is useful anyway, and some drives already allow this.
* Don’t reject out-of-bounds read requests. This allows dumping the “PRODUCED BY SEGA ENTERPRISES” area—yes, that area is actually readable in CD audio mode. (It uses SafeDisc 2-like weak sectors.)
With these changes, it’s likely that you could stick a GD-ROM into the hacked drive and Windows will browse to the high density file area automatically.