>>Could someone kindly recommend the best program (ideally PD) to >>batch >>undelete files from a QL floppy which has most of the files deleted. >>I know >>one needs to make a guess as to the executable storage size, and >>also there >>are programs which allow manual restoration a file at a time, but >>putting >>the two together (i.e. guess the size, and plod through each file - >>I have >>several disks), is there something that is more automated? > > You could use DISCED, a disk editor for the QL for manual work. > > I dont recall how QDOS does deletion in the FAT but I think the > directory > remains largely intact. > > The FAT will present some problems, a 12bit entry for file & sector. > Years > ago Simon Goodwin did a fine article on the layout of the floppy, I > would > not mind seeing it again. > > Worth trying a DISCOPY in DOS, and a good HEX Editor for Windows > that can > open a device http://www.kibria.de/ is excellent. > > You can use TK2 direct sector access to input and print to a file, > RU into > DP's Editor.(set for line length >512) You may be able to recognise > and > follow a given file, it is likely that the sector interleave factor > is 3. > > Have fun ! There are some file recovery utilities on my website http://www.dilwyn.uk6.net/files/index.html
1. Floppy Disk Utils (FDU) from Ergon Development 2. Media Manager SE sources from Chas Dillon (if conversant with writing own basic programs, this may well help you write your own) 3. Recover (Archive databases) 4. RecoverQ 5. RecoverX (for QXL.WIN systems) 6. ResQL 7. Rettunge If interested in finding some more info about the QL disk format, you will find it documentedin some older QL disk interface manuals (e.g. the one for the Technology Research TRL128/Delta interface), there's also Dave Walker's guide on my documentation website: http://dilwynjones.topcities.com/qldocs/qldocs.html Hope there's something there to help. And don't forget if anyone wants manuals for older disk interfaces, I have several on my QL Documentation CD, including a 'generic' one suitable for most older disk interfaces conforming to the Tebby/QJump standards - I think these were on the QL Today CD which contained most of the Documentation CD content. -- Dilwyn Jones -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 268.2.6/288 - Release Date: 22/03/2006 _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
