1. what's better for mp3 USB or SD card? (I don't like when USB after boot up automatically switches and plays the mp3)

2. when playing mp3 from USB volume is 20% down comparing to CD or Radio. I recorded some mp3 on CD as a data and they are still much louder then played using USB - any idea?

3. In testmode did anybody try to connect USB mouse to operate in windows CE ( I dont own one)

BTW Did software bypass and delete some wav files - works great

1) doesnt matter, but at least SD doesn't require some hideous cable sticking out somewhere

2) look up in the manual about SLA

3) hasn't been tried to my knowledge

I tried a USB mouse today, without any luck.

I heard that the USB isn't powered, so that might be the cause of some issues.