Why can't I load thumb drives?

Do you mean 400MB or 400GB?

My mistake.  

gigabytes, not megabytes, and copy not transfer.

I was tired...

Bill

Plural?

It sounds like a bad memory stick.

I got plenty of them, stay away from Kingston.

I have tried 3 different thumbdrives and every time the copy begins OK but slows down to almost nothing after a few GB, and starts indicating errors in the files.  Finally I give up.  

As I said above, a friend told me that memory chips are just not good for this type of large operation and that I should stick to hard drives.  I am hoping that someone can give me a solution.  I am feeding Cabasse speakers that have a micro usb input that is only for a hard drive or a thumb drive and would like to clean up the setup.

Bill

@wbs I have many high capacity USB drives that I use for back-up and transferring files the largest I have is 1TB.

Assuming you are using Windows (don't ask about Mac), I would first deep format the USB drive, not quick format, using NTFS first.

Do not create any partitions. See if this works and you can load files and play them.

If not try again using ex-FAT and lastly FAT.

Are your files FLAC, WAV or something else?

Thank you for your suggestions.  You have answered the basic question I had, whether or not a thumb drive is useable.

I will format and proceed accordingly.

Thanks again,

Bill

Stick your drive directly into your PC or laptop without using a hub.  I've had a number of them do weird things when used through a USB hub.  Perhaps because I had slow peripherals hooked up and they slowed the transfer.