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Converting large files with DC
Posted: Tue Sep 20, 2011 9:45 pm
by Alastair
Short of splitting large multi-part programs such as Mystery of the Java Star into separate parts, is there any way of enabling DC to convert large files? I'm particularly interested in the CAS to WAV conversion.
Re: Converting large files with DC
Posted: Tue Sep 20, 2011 11:41 pm
by admin
No, the limit is hard coded
There is a cas2wav tool in the downloads area written in perl - if you download perl for windows (or use a linux machine) you can use that as a commandline tool to convert to WAV...
Alternatively, the source code for DC.EXE might be made available if the author uploads it here......(assuming it is still available).
Re: Converting large files with DC
Posted: Tue Sep 20, 2011 11:53 pm
by Alastair
I know of other conversion methods but I'm working on the premise that if a real Dragon can read a wave file created by DC.EXE then the CAS file must be decent.
Re: Converting large files with DC
Posted: Wed Sep 21, 2011 12:03 pm
by robcfg
I'm working on a tool similar to DC.EXE and I have some success, but it still need some work. Stay tuned!
Re: Converting large files with DC
Posted: Fri Sep 23, 2011 4:04 am
by Sarah
I was thinking similar thoughts!
The original Dragon Convert for MS-DOS is unfortunately limited to a single segment for its file buffer (64 kb; or more accurately $FFF0 bytes since one paragraph is required by the C runtime). It does use huge pointers, so might actually work across multiple segments if more memory is allocated but I can't remember whether or not I tested that... my largest CAS file is only 59 kb!
Anyway, I had a quick play and made the attached Windows (.NET) application which might help. It's very basic but seems to be functioning okay with the few files I've tried.