Hi,

I have the JM4 looper with firmware version 2.09 installed from new but am having problems with SD card functionality.

I have tried 2 SD cards now - both smaller than 2gb - and get the same problem.  Every time I try to access the SD card through the looper menu (whether trying to format the card, saving or transfering files from card to looper and vice versa), the looper seems to go straight in to a re-boot or re-start - I never actually get to access the card.

I've also tried recording a track and saving it to the card but get the message "invalid characters in filename" despite only using the suggested file name given by the unit.

Is the unit faulty or there something I need to do?

Also, any chance of allowing playback of mp3 files on the next firmware update? I'm sure this would appeal to anyone and everyone.

Many thanks,

Matt