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Warbaby
Account closed
Registered: Mar 2002
Posts: 60 |
G41 diskimages
I tried to convert a G41 diskimage to a real 5,25 inch flop, but Starcommander doesn't seem to recognice the format. What's up with that?
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Menace
Registered: Dec 2001
Posts: 75 |
To my knowledge THERE IS NO SUCH fileformat. What's the size?
If it's 174 848 bytes, then chances are it's a renamed D64.
Just rename your suffix.
If that's not it, try reading the file with a hex editor... What does the first bytes read? These are often an indication to the format, except for when they're straight diskimages, of course - like D64.
Failing that, try 64Copy (www.fairlight.to) - perhaps that recognizes your format.
Good luck. |
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Warbaby
Account closed
Registered: Mar 2002
Posts: 60 |
The size of the files is 278.234 bytes.
The files have a header wich begins with the following string: GCR-1541
It's a rare format, and it works with VICE 1.9 |
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Warbaby
Account closed
Registered: Mar 2002
Posts: 60 |
I just found that it's better known as the G64 format.
It was made for a few games wich make use of the 1541 drive in an unusual way. These games do not work with the normal d64 format. For example the game Portal by Activision. I still don't know how to convert these disks using Star Commander. |
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Rough
Account closed
Registered: Feb 2002
Posts: 1829 |
this guy could help:
http://arnold.c64.org/~minstrel
what about an automatic link inclusion in the posts, csdb host? |
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Krill
Registered: Apr 2002
Posts: 2825 |
G41 files are raw images of c64 disks, meaning they contain the disk data in raw GCR format plus extra low level format details. This format was invented to make programs using weird floppy tricks like copy protections and custom formats runnable by emulators.
If someone will ever write a tool to save any G41 image to a floppy disk using a floppy connected to a PC, i'd be truly impressed.
There's of course a reason why there are no public converters to and fro G64 - it'd just be too complex to code a generalized converter for them. Also in some cases those disks can't be read reliably using a 1541, and writing them is even harder or simply impossible. That's why those disks were copy protected in the first place. |
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Rough
Account closed
Registered: Feb 2002
Posts: 1829 |
The guy on the link coded a tool to transfer disks to g64 via parallel cable and xe1541. it's in a beta phase currently |
