On 8 May 2010, at 10:58, Rich Mellor wrote: >> >>> Does anyone have the details of the standard Sinclair QL disk format for a >>> DSDD disk: >>> >>> MFM/FM ? number of track , number of side, sector per track, sector size, >>> bitrate >>> >>> From memory - I think it is: >>> >>> 80 tracks >>> >> Yes >> >> >>> 2 sides >>> >> Yes >> >> >>> Sectors per track? >>> >> Nine >> >> >>> Sector size 512K >>> >> Yes >> >> >>> bitrate? >>> >> What do you mean? >> >> George >> _______________________________________________ >> QL-Users Mailing List >> http://www.q-v-d.demon.co.uk/smsqe.htm >> >> >> > Actually, I would hope it was 512 bytes per sector.
Yes. 512K is a bit big, unless you take K = Byte! > > Thinking about it, surely it is 18 sectors per track? > 0.5 (K) x 18 x 80 = 720K > Each track has nine sectors of 512 bytes each With 80 tracks per side and 2 sides you get 9*2*80 = 1440 sectors > Not sure about what they want to know about bitrate - presumably the speed of > transfer the QL can cope with! > I don't know the answer. George _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
