Re: More detail... Help with copying D64 files to Disk

From: Bill Degnan <billdeg_at_degnanco.com>
Date: Thu, 22 Oct 2009 09:45:20 -0400
Message-ID: <5f40e5e2$278d5473$550f4397$@com>
Scott,
Taking something really simple and that is ntsc, as stated by others, try 
adjusting the speed of the transfer through the cable. I recall the the 
64hdd.exe program had a lot of switches (slash parameters) to compensate 
for transfer rate and related issues having to do with sending the data 
from the newer system to the older to make a disk.  Maybe your program has 
similar switches you can add at the command line and with these experiement 
until you get the correct transfer rate.
Bill

-------- Original Message --------
> From: "Peter Rittwage" <peter@rittwage.com>
> Sent: Thursday, October 22, 2009 8:49 AM
> To: cbm-hackers@ling.gu.se
> Subject: Re: More detail... Help with copying D64 files to Disk
> 
> It sounds to me like you are trying to run PAL games on an NTSC C64.  
Most of
> the time, they crash looking for a raster interrupt that never occurs, 
since
> there aren't as many screen lines.
> 
> To test this, you can run VICE in NTSC mode to see if the game works 
before
> transfer.  This isn't a 100% test, because VICE is not exactly like an 
NTSC C64,
> but it should be mostly close enough.
> 
> Pete Rittwage
> C64 Preservation Project
> http://c64preservation.com
> 
> 
> 
> 
> On Wed, 21 Oct 2009 20:58:02 -0400 "Scott" <rylos@charter.net> wrote
> 
> > Hopefully someone out there has tried this and will be able to help me 
sort
> > this out.
> > 
> > 
> > 
> > I am having a high failure rate copying D64 files to disk.
> > 
> > It seems that Win Vice is more compatible than my 64C setup. Most of 
the
> > D64, Prg and P00 files work great on Win Vice but once copied to disk, 
fail
> > once loaded.
> > 
> > 
> > 
> > Example is Bedlam, I have found 7 or 8 different sources of this 
program,
> > all seem to work on Vice but once I transfer them to disk, then to my 
64C
> > setup, they don't work.
> > 
> > 
> > 
> > Normally the screen goes black, freezes after RUN or has lots of 
garbage on
> > the screen. Some fail after the Crack screen runs (The crack screen 
always
> > seems to work).
> > 
> > 
> > 
> > PAL vrs NTSC. I've read a ton on the internet and it seems that for the 
most
> > part, PAL games should work but run faster. Though I'm pretty sure some 
of
> > them won't work at all which may be part of my problem. But I'm having
> > trouble (on the 64C side) even with the ones that say they are NTSC.
> > 
> > 
> > 
> > My PC setup: (no more clone drive)
> > 
> > XA1541 adaptor connected to a 1541 II Drive (Alignment and speed 
perfect)
> > Using OpenCBM and CBMXfer GUI (CBMXfer defaults to OpenCBM's 
D64Copy.exe to
> > copy files to disk).
> > 
> > 
> > 
> > My Commodore setup:
> > 
> > 64C with 2nd 1541 II Drive (Alignment and speed perfect). Epyx Fast 
load
> > cartage. C64TPC Adaptor.
> > 
> > 
> > 
> > Note: I've tested the 64C with Doctor 64 and no errors were reported. 
Same
> > with the Drives. I've also checked the alignment of the Drives 
comparing
> > program results with a Factory disk, the 1541 Demo Disk and the results 
were
> > identical.
> > 
> > 
> > 
> > I know other 1541 devices work great and all and so do the emulators, 
its
> > just I'm having trouble understanding why my setup isn't the optimum 
way to
> > play D64 files.
> > 
> > 
> > 
> > Please, any help, Advice or direction would be greatly appreciated.
> > 
> > 
> > 
> > 
> > 
> > 
> > ---
> > avast! Antivirus: Outbound message clean.
> > Virus Database (VPS): 091020-0, 10/20/2009
> > Tested on: 10/21/2009 8:58:06 PM
> > avast! - copyright (c) 1988-2009 ALWIL Software.
> > http://www.avast.com
> > 
> > 
> > 
> >        Message was sent through the cbm-hackers mailing list
> 
> 
> -
> Pete Rittwage
> http://rittwage.com
> 
> 
> 
>        Message was sent through the cbm-hackers mailing list 



       Message was sent through the cbm-hackers mailing list
Received on 2009-10-22 14:00:57

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