Copying game from Slot B to SD2SP2

[Cuddles]

I am having an issue where I try and copy a game from an SD card in slot B to my SD2SP2. It gets to about 16% and then says fails to read

Only reason I want to do this by the way is because I have a GameBoy Player installed and I wanted an easy way to transfer games to the SD2SP2.

The error I get is "Failed to Read! (262144-1)"

The SD card I am trying to use is a Micro SD card from Sony 16GB SDHC formated in FAT32

Edit. Just tried SanDisk 4GB without luck formatted in FAT32 and a 128GB formatted in exFAT

[Papy.G]

That's why I made myself one with external full-size SD slot.

Although there are side-loading µSD2SP2s around for quite a while now, screwing the GBPlayer to the main unit is not mandatory.

Filling the SD card at once from the beginning is advised, as it prevents file fragmenting because of patches being written each time you launch a game.

[Diego borella]

I believe that this also has to do with the format and brand of the cards.
the size of the files also seems to influence the copy job.
he doesn't appreciate large files.
try to use the same card format, give preference to FAT32 for this type of maneuver.