DVD Decrypting file size problems

Hi
I'm having problems Decrypting DVDs to convert them for my ipod:

I'm using DVD Decrypter v3.5.4.0 to decrypt dvd's to my hard drive but everytime I try to decrypt a large file it converts about 4gb then an error message says there's not enough space on the disc even though I've got a 320gb hard drive with 240gb of free space.
I've also tried decrypting it in two parts then using nero to join the two .vob files but get the same message when it tries to import the two files.
Any suggestions?
Thanks in advance

 

See if you have the same problems using DVDFab HD Decrypter.

 

What is your OS file format for hard drive?
Is it FAT32 or NTFS?
If FAT32, than that is a limit for file size.

 

Ah yes! That could be.

 

Yes it's FAT32, is there any way round it?

 

Rip in File mode.
In the settings click on file and split by file.

 

Sorry if his is a silly thing to say but when I'm trying to rip a film it only shows as one file so not possible to convert a film in oneto one file.
Can I spit it into smaller chunks, convert the smaller chunks to mpegs then merge them in nero? It's the only way I can think of doing it but it seems a pertty long process

 

Are you in file mode?
Are your settings correct?

 

Ah, the on-line guide I read said it's best to use ISO mode, what's the dfference?

 

ISO is 1 file. There is no best. You can rip in file mode or convert your drive to NTFS.