Filesystem used in RH7900 DVD recorder from LG

[dobrevjetser]

Hi,

Somebody knows which filesystem is being used in the DVD recorders from LG ?

I've got a RH7900 where my client recorded lots of home-made movies on.
When i look with winhex, it says the drive is formatted as FAT32, but when i try to look into the partition, it is empty. No recognisable structures.
Someone has an idea ?

Thanks in advance,

Dobre