The partition was FFS, but I don't remember whether it was international or not. Does it matter?
No, it does not matter. Partition borders (first cylinder, last cylinder and number of blocks per cylinder) matter, as well as the block size.
But you should choose "international" now, because I think that FFS-INTL can read FFS-NON-INTL partitions, but not vice versa. But I could be wrong here.
If your suggestion does not work, can I then try with RecoverRDB ? (which, BTW, is made by you, isn't it)?
Well, there are many programs on Aminet with "RDB" and "Recover" in their names. The one I wrote is called "RDBRecov". There is another one called "RDBRecover" IIRC which can only be used if you saved the RDB before. And the same applies to "RecoverRDB" IIRC.
So if you want to try "RDBRecov", then yes, it might help, although it was not meant for FFS partitions originally.
But you'll get free support from the author :-D
Bye,
Thomas