Empty Disk frustrations

Watch the video How to sync music to Craig MP3 MP4 player

Yes you can but you need to convert the MP4 files to MP3 file format.
You can do this using Windows Media player and Rip the CDs and MP4 - Media Player will create a MP3 music file for each music track. Click on this link for instruction on converting music files to mp3 file format :- http://www.fixya.com/support/r5798418-creating_transferring_mp3_music_files

Hey bro, don't worried, i'd has the same problem that you, i read in a forum (and i did it) that you must download a tool named "low format disk tool" and make a format to your USB drive, it make a deep format and fix all error in unit, i did it and solve my problem that was the same you, and my mp4 have the same firmware, 9.5.54. I download the program from http://www.softpedia.com, i hope has help you and another one who has the same problem...

search for drivers on mympxplayer.org. It's a website dedicated to mp3/mp4 players.

search for its firmware files on the web...and overwrite it on the existing...

refomatting and reallocate the partition is the only solution

MP3 XINTAI Firmware. Please pass it to the other repliers at the forum, or anyone who needs it.

Hi pals.

At last!, I've backed-up the firmware for Xintai MP3 Player from Wilson Co. Ltd., and put it here:

http://www.paginasprodigy.com.mx/darkwing/Xintai9152_Wilson.zip

Don't worry cause one of the files (at UI30.RES) has an incorrect checksum. It's due to prior edit on ASCII labels.

I couldn't say it is really the firmware you want, so you must check and verify thoroughly before proceed.

Please note:
1.- Do not update or reload firmware if your player is working fine (more or less).
2.- If this firmware is not EXACTLY the same version, for the same chipset, there's no guarantee. The player could not work or, even worst, could suffer defintive damage.
3.- It's highly recommendable you BACKUP the existent firmware, despite damage suspects.
4.- To backup and/or restore firmware for this player, you can use "S1res" Ver 4.1, downloadable at:

http://www.s1mp3.de/tools.s1res.html

For restoring firmware, you can also use the "Player Upgrade Tool" Ver 4.18 or superior (part of "MP3 Player Utilities"), downloadable at:

http://www.mympxplayer.org

Enjoy your music.

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XINTAI MP3 Player
Wilson Co. Ltd.
Bootflash type: F285
brom version: 3.0.80
Firmware version: 9.1.52
Date: 9-01-05

VID: 10D6
PID: 1101

V9-device
giveio ver: 3.0
Flash chip: A514D3AD "HYNIX/SAMSUNG 1024 (LBF)

MTP Manufacturer: Auctions Semiconductor Co.
MTP Version: V1.00.3333
MTP VID: 10D6
MTP PID: 2200

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Hi,
these are quite simple to work usually self explanatory.
the name probably won,t exist. find system settings, and change the default language to english. it,s a simple matter then of connecting via a usb lead to the pc, and transfering your music across into the designated music folder.
Hint:- make sure you transfer as MPEG3. if it,s only 128mb there,ll not be much room for songs.
Mike @ Compurepair.

try transfering them from a different music system

i have brought a new mp3/mp4{s1 mp3 player} player of 4GB.when ,i made a secert space with the help of mp3 disk tool.my memory of mp3/mp4{s1 mp3 player} player 
is decrease.Now it show only 108 MB.