[email protected] cannot format my yepp yp-t5 it tells me it is formating but when i hook it to my computer it tells me its not formated  and cannot format

Use the Samsung Firmware Updater to fix it. Mine did what all of you are speaking about. I was ready to toss it then I tried the firmware updater on the CD and it fixed it. You must copy all the files from the \setup\Programs\ and \setup\Binary\ folders on the Samsung CD to a folder on your hard drive. Then connect the player via USB and run stupdaterapp.exe. It will search for the device and pop up a menu. Check the Format Data Are box and click start. It takes a few minutes and wipes the device clean but it fixed mine.