On Tuesday 20 September 2011, you wrote: > >> The Kryoflux hardware idea is fine. Software support tends to lag. It > >> can't read the back side of disks, for example. > > > > and it will never be able to =) although they claim something like that, > > you will have a very hard time to find a pc drive mech which can read > > tracks below track 4 on the flipside. you will require the same drive > > "hack" to read flip disks as you will need when working with the > > catweasel (which works by exactly the same principle) > > Could you elaborate some more on the problem that you describe (track 4 > flipside) or provide some pointers ? leaving the index hole problem aside (this can be solved, and actually only matters if you want to flip disks in a standard pc mech), its a mechanical problem... on an actual "flip disk" (like what you get when you format both sides of a disk using a 1541 by flipping it), tracks are exactly at the same location on both sides of the disk surface. now in a typical double-sided drive mech, the top head is offset by (about) 4 tracks (also for example in a 1571) for - i guess - manufacturing reasons. and if you seek to the outher edge of the disk ("track 1") the top head does not reach the position where the actual track 1 would be located on a flip disk, and moving even further is restricted by the drive mechanics (for obvious reasons, i guess). so to be able to read a "flip disk" in a double sided mech, you would need to find one where you can hack the mechanics to allow seek to "track -4". Message was sent through the cbm-hackers mailing listReceived on 2011-09-21 00:00:11
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