guitarking , looks like you have a hacked 128MB memory chip, less 20MB for the firmware files. By hacking a memory chip, they can even make a 128MB chip look like a 100GB memory chip.
What i advise would be to get a full refund from your seller. As i'm very sure you paid top dollar for a 4GB player, but in actual fact it is a 128MB player.
You may like to seek a full refund + shipping from your seller if you bought it via eBay. There is a thread reply by tadad1 on this procedure
Here.