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Flex disks
Posted: Mon Aug 09, 2010 10:26 pm
by prime
Ok I won this lot on ebay recently :-
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0461779073
This archive is a dump of the comercial disks in this batch I will do the rest at some later date.
Thd disks are raw images taken as a dd from Linux.
Note three of the disks are single desnity !
Cheers.
Phill.
Re: Flex disks
Posted: Mon Aug 09, 2010 10:57 pm
by admin
PSE-Orange-Flex-Disk1.dsk is actually Flex Pack V1.0 (c) 1986 MicroVision - Roy Coates (Of Manic Miner/JSW fame) is the man behind MicroVision. I guess Orange picked up the distro rights towards the end.
Re: Flex disks
Posted: Tue Aug 10, 2010 12:06 pm
by robcfg
I cannot load them into XRoar, is there any utility to convert them?
Re: Flex disks
Posted: Tue Aug 10, 2010 4:07 pm
by admin
You need to add the VDK header to the file and rename to .VDK. There should be the tools to do this in the downloads area - if not give me a shout as I have compiled them for Win32.
Re: Flex disks
Posted: Tue Aug 10, 2010 4:15 pm
by prime
admin wrote:You need to add the VDK header to the file and rename to .VDK. There should be the tools to do this in the downloads area - if not give me a shout as I have compiled them for Win32.
Indeed, though oddly, the Flex-OS disk boots fine in MESS, and I was able to access the Cobol and Basic disks mounted in drive 2, though it was probably using the wrong geometry, but since the directory is in the first few sectors that was ok. Though perhaps MESS can recognise the boot sector of Flex disks and adjust the geometry acordingly, I know it will do this for OS9 disks providing that they have the .os9 extension.
The really odd thing with these disks was that when I analised them with Anadisk under PC-DOS, the interleave varied from track to track, mostly 5:1 and 6:1 but sometimes 2:1.
Cheers.
Phill.