Hello, >> Additional info: I did have time to fire up a CBM-8296 and CBM-8250 >> drive - both in working contition. Couldn't read any dir from the >> CBM-900 disks with the CBM-8296. From the start I didn't expect the >> CBM-900 disks to be CBM-DOS GCR format. The CBM-8250 returned DOS >> error code 23 (checksum error in data block) stating that the right >> track/sector have been read into memory but that the checksum on the >> data is wrong. Right now I don't really know what to conclude from >> this... > > this is really interesting, it actually hints on that the disk uses > GCR, and also a very similar format. (else you should get "sync not > found" or something like that). infact you should be very close, > since syncing and also sector headers are working :) What is if the format for the CBM-900 ist expanded in the block size to 512 bytes? The checksum calculation must failed! Does anyone know the mostly used block size of the coherent system? Martin Message was sent through the cbm-hackers mailing listReceived on 2011-12-25 23:00:12
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