I like the idea of a new format as well - definitely needs to be able to handle non standard sectors etc - compression. I can knock up a windows utility to convert to/from any format etc if needed.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Edwin Blink Sent: 26 November 2004 13:14 To: sam-users@nvg.ntnu.no Subject: Re: SAM Software Archive > still have very small images by only storing the sectors used by the files > on the disk, with blank tracks requiring only the 7-byte header. OK had a better look at the info. At a quick > guess, a fairly extreme 5 track single sided disk would use: 14 + 5*(7 + > 10*(7+512)) bytes, which is about 25K what's with the track header length? following your example. If you can have null tracks and sectors then the smallest diskimage of a singlesided diskimage that contains 1 directory entry (0,0) a single file of less then 502 bytes (4,1) could be 14+2*(7+(1*(7+512)) a little over 1K(1066 bytes) ? Thats not bad at all. But a full standard diskimage will have a overhead of more then 12K which makes it less interesting > Do you support transferring only the used sectors of disks, in the case > where it's a SAMDOS-compatible format? It makes a big difference to the new > SamDisk when transferring near-empty disks, and would be even bigger for > your comms transfers! Your right comms transfers could be a lot faster when those junk sectors are not send. Currently it just reads in a standard disk from a dsk image and send in two passes all done in basic. The transfering part is done in MC offcourse. I'm seriously about a new disk format. So any one having thoughts shout ! Edwin
