How do i format my mp3 player without a disk
I don't know if this is affected by the 'network' aspect of your player, but this would be the general procedure for MP3 players, where you can view the player as a drive on your computer.
You can format the player using Windows, but there is a complication: Windows defaults to "NTFS" when formatting, but MP3 players normally use FAT32. Before you attempt this, connect the player, and check the 'properties' on the drive that appears. It will probably say "FAT32". In this case, you can go ahead and format the drive, but be sure that you choose "FAT32" from the drop-down list. If you format it NTFS, your player won't be able to read it!