ISO size limit

[GoogleCodeExporter]

What is the file size limit for an ISO for a SEGA-CD/ MEGA-CD game?

What steps will reproduce the problem?
1.  Downloaded 'Lunar - The Silver Star (U)' containing .CUE and .BIN files
2.  Mounted .BIN file with MagicISO Virtual Drive to create a MagicISO .UIF 
(ISO) file of 419 MB
3.  GenPlus-GX 1.7 states the file is too big

What is the expected output? What do you see instead?
GenPlus-GX 1.7 was able to load the .BIN/.CUE file combo (without audio).  When 
I converted to an ISO, I met a file size limitation.

What version of the emulator are you using (official, SVN revision,...)?  
Official 1.7

Please provide any additional information below (Emulator settings, Console
setting,...)  All system settings are set to default.

Original issue reported on code.google.com by exoskyfl...@gmail.com on 8 Jul 2012 at 3:17

[GoogleCodeExporter]

There is no size limit as the ISO file is never completely loaded, only 
accessed when needed by the game.

The error message you got simply means the converted ISO file is not a valid 
Sega CD image anymore. You have to remember Sega CD image used a specific 
format, which is not *exactly* ISO9660 file format. In particular, a valid .iso 
file should have the string "SEGADISCSYSTEM" at the start of the file header.

There is no need to convert a bin file,  as you stated yourself, the emulator 
is able to load .bin just fine.

Original comment by ekeeke31@gmail.com on 8 Jul 2012 at 3:32

• Changed state: Invalid

[GoogleCodeExporter]

Intricacies not familiar to me.

I'll be trying this out soon enough.

Thanks for the fast response.

Original comment by exoskyfl...@gmail.com on 8 Jul 2012 at 4:23