Simon Cooke wrote: > Sector addresses which do not directly correspond to their > real location on disk
SDF stores the ID fields for each sector, so faked track/head values and non-standard sector numbers are no problem. > it used 5 x 1024 byte sectors followed by 1 x 512 byte sector > to fit 11k per track, instead of the usual 10k. Mixed sector sizes are covered as part of storing the ID header+data for each sector on the track. It also preserves the sector order from the index hole, which is something Sophistry needs to run in full rather than demo mode. On W2K/XP you can use the new: SamDisk.exe /scan a: to display a sector-level dump of protected disks, including sector order and any mismatched track/head values. It won't let you image those disks just yet, but it's in the pipeline... > I think it may also have written 82 tracks. My Lemmings _appears_ to have 83 tracks formatted, but with track 82 an exact copy of track 81 (including headers). It could just be that the drive I used to image it couldn't seek to track 82, but I've got a feeling viewing it on the PC also showed the same. > Any truly generic archive format would have to support such disks. Does the archive need to be a single format for all disks? Or could the 95% of normal format disks be kept in a simple dumped image format, with only protected disks using a different format needed to describe them correctly? Si
