before you rush out and buy a huge SD card use the backup functions to transfer your files on to the 8 MB card.
it might be actually more useful to have groups of smaller backups because you can use the merge function to combine them in any order you like and then restore the results on a larger card.
say you have a series of disks - technote, algo, carillon etc etc. Transfer each set to the small card in bunches of 5 or 10 folders... pats & regs, mega style, 6000 presets, whatever system you wish to choose. Backup each of the sets of small files in song manager - you can describe each with long file names, then format the card, make the next set, and back it up, format, copy the next set etc. This work is really no different to copying all the files on to a single large card anyway.
By the time you have copied all the files you want you will have an idea of what size of SD card you need to accomodate them all.
Then you can use the song manager to merge the small backups into larger backups on the pc. Then just restore the single large backup to the new large card.
The advantage is that you can make several backups for the larger card of all the small backups, but in any order you wish to have them because you have control of the merge operation.
Thus you could make one large backup starting with the technote files, then the carillon files, then the algo files, then 6000 presets. And make another large backup starting with 6000 presets, then algo, then carillon, then technote in the exact opposite order. Thus you have more flexibility in planning the 99 folders in the most useful order you wish them to appear in the screen from the large card.
the card reader is faster