Trascend mp3 is not playing

If what you downloaded an '.iso' file, you need special software burn this "image" of the DVD's files, byte-for-byte, onto a blank DVD-media disk.

Search for "Ashampoo Burning Edition free edition" for good and FREE software for imaging your ISO file to a blank DVD.

the mp3 file has become currupt, simply plug back into computer, then format the player, you need to tell it to format in default!!

once formatted, remove the battery, put back in then put back in computer, then just put your desired songs on, this should sort out the problem!!

my 850 memmorry is locked and shows 0 kb free

my trascend ipod did not read in computer

not sure if this link will help you out but have a look.
Fantom drive shows up as Drive Google Search

with trascend mp3 player you also had one recovery tool cd . By using this cd you can solve the problem .the firmware updation was completed by using this cd.....

I would just update the firmware and start over from scratch.
The "Plays for Sure" system only recognizes protected WMA's. The other mode will not allow you to play music period. I've never heard of anyone having that problem with that particular player, but if what you are saying is true, then you will be forced to use only protected WMA files - which means you can never let your Rhapsody or other music service subscription expire. And if there is ever a problem, you will have to delete all and reload.
As an experiemnt load at least one Mp3 format file into the player, and see if it plays fine. If yes, then only use Mp3 files from here on out. They are less problematic.

You are attempting to download music from a CD to your hard drive? Perhaps it is write protected.

Plug the device into the computer open the device port that it's pluged into and delete everything that you downloaded onto it and then retry to download the supported format that the device supports.

Here you go http://www.mympio.com/index.php?topic=15.0