convert 360ko dump with a 360ko drive

[breiztiger]

hi

i have a dump from a 360ko floppy (track0.0.raw to track41.1.raw)

with this commandline

dtc -m1 -ftrack0.0.raw -i0 -foutput.img -v300 -i4 -l8 -e41

i got a 720ko file with second half fill with 00

what i make wrong ?

thanks in advance

[ZrX]

Add -g0 between -v300 and -i4 to include only the first side in the image.

[breiztiger]

but a 360ko disk have two side,no ?!?

(2 sides x 40 tracks x 9 sectors x 512 bytes)/1024=360ko

[brightcaster]

I guess you don't need single sided mode but only the first 40 tracks!

So does it also happen if you set -e41 to -e39 in your command line? If there is no copy protection there is no need for the tracks 40 and 41...

David

[breiztiger]

just try ... the same with -e39

as i have already say if i cut the result file in two part the first one is good

[ZrX]

It could be due to the drive being 40-track and generating data on so-called halftracks (odd tracks) that would show as empty when dumping such disks with 80-track drive. DTC being programmed with 80-track drives in mind sees data on every track and assumes it to be a 720k disk.

[brightcaster]

What's the drive type you're using. Is it 40 track (48 tpi) or 80 track (96 tpi)?

David

[breiztiger]

this dump was made with a 360ko/40track drive

[brightcaster]

Okay, I checked it myself with a 40 track drive and I have to admit that I can't get it right either. DTC only produces 360k image files if you use a 80 track drive (setting the "track distance" to 40)!

However, if you have to convert al lot of dumps you may use the HxC-Tool which does it right...

https://hxc2001.com/download/floppy_dri ... r_soft.zip

David

[breiztiger]

aaah i'm not alone

i think it's a bug because the second half of img is only fill with 00 bytes