'V-Max secondary checks'
Author:Lord Crass (guest: search)
Date: Sat, Apr 02nd, 2011 @ 02:40 ( . )

How much is truncated? It might be ok if it's just useless gap bytes being left out.

You should be able to get all the actual sector data written on the track, since even a software nibbler with a standard 300RPM speed could do this.

I don't think the protection is too picky either. It averages values all over the place, so I guess it's anticipating some differences. As long as there's a measurable difference from the other tracks... Only way to find out is to try it.

I'm guessing you'll still get caught by the track 12 sync check though. Easiest way to tell on a real C64 is to listen to the drive and watch the screen when you choose the "go raiding" option (assuming this is Defender of the Crown). If you're failing the density check, you'll hear it clicking as it reads tracks 12-18 over and over again. When it fails track 12 sync check, it'll pause for about 2 seconds on one track, then reset the computer.


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