SpectraVideo SVI605B

[d-elm]

I have a SVI328 with expander SV605B and Gotek. The disk format is: Track0= 9sec / 512bps
Track 1..79 17sec / 256bps.
I can read and write track 1..79. With Track0 I get an error message.
Here is my entry in the IMG.CFG:
[CUCd80]
cyls = 80
heads = 2

tracks = 0.0 ## Boot cylinder, head 0
secs = 9
mode = fm
bps = 512
id = 1
tracks = 0.1 ## Boot cylinder, head 1
secs = 9
mode = fm
bps = 512
hskew = 1 # Simulates correct inter-track interleave
id = 11 # Follows on from head 0 (1..10)
tracks = 1-79.0 ## All other cylinders, head 0
secs = 17
mode = mfm
bps = 256
interleave = 6
id = 1
tracks = 1-79.1 ## All other cylinders, head 1
secs = 17
mode = mfm
bps = 256
interleave = 6
hskew = 5 # Simulates correct inter-track interleave
id = 19 # Follows on from head 0 (1..18)
Thenk you