Hitachi inspireDMP460 4GB can I charge the battery from the mains

how long should the batteries last from full charge just playing mp3s ??

There are two things possible.
1) You have defective re chargeable batteries in your GoGear.
2) There is some short circuit because of which the re chargeable cells are discharging.
Either way you should get the system changed. If you want to confirm if its the battery defect or GoGear. Charge the system fully and play music continuously. If the Go Gear plays for about 4 hours with out break---- its not the battery but the charging system.

You can hear music and sound when you test your audio and also the Windows startup and shutdown even sounds. But you can't hear any music when you play it in Windows Media Player or the videos on youtube because Windows Media Player needs some codecs installed and you don't have those installed.

You can download and install this Media Player codec pack from Microsoft.

Hope that helps,
Regards,
Raspal

just got Hitachi DMP 860 8gb mp3 player, downloaded music but when press play it just says No authorisation?? any ideas??

To charge your player, with the player on OFF, connect it to a computer or other charging device. Then, after everyting is connected, then turn your player to ON. (For some reason, my player doesn't charge if it is already ON while being connected to the computer or other device.) It will charge.
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This is the solution that I use for the music. Connect you player to the computer. Turn it ON after being connected. Go to FILE NAVIGATIONN. Copy your music there. (not in any forler, but as a separate entry in FILE NAVIGATION) Next, disconnect your player from the computer. (Use the SAFELY REMOVE HARDWARE feature for this.)

On the player, there is a PLAY button (NOT THE ONE MARKED "M", BUT THE ONE WITH THE RIGHT FACING ARROW WITH THE TWO BARS) next to the volumn button. After going into the FILE NAVIGATION menue, scroll down to the song(s) and/or music you want to move. Click the song using PLAY. You will see three options: MOVE, COPY, and DELETE. Scroll down to the MOVE option. In the main menue of FILE NAVIGATION, scroll down to MUSIC. Now click the "M" button (the one next to the button with two arrows and one bar). A screen will come up that says that the file is being moved. The song will now be in the MUSIC folder.

You could use the COPY or DELETE features for their respected funtions if you want to when these functions appear.

This is as complete as I can make it.

My 4300b have only Navigate, Settings and Bluetooth buttons.
I modify IGOPATH.TXT file located in \FlashDisk folder on 4300b :
=============================================
[modules]
Bluetooth = "icons/bluetooth.bmp", "\\windows\\bluemain.exe"
Settings = "icons/settings.bmp", "settings", 1
Multimedia = "icons/media.bmp", "Multimedia", 0
Navigate = "", "\\Flash Disk\\igo\\igopna.exe"

[Multimedia]
Picture= "icons/picture.bmp", "\\windows\\PhotoViewer.exe"
Movie= "icons/movie.bmp", "\\windows\\player.exe"
Music= "icons/player.bmp", "\\windows\\xplayer.exe"
Explorer = "icons/files.bmp", "\\Windows\\explorer.exe"
==========================================
and now I have a Multimedia Button.
Verify to have PhotoViewer, XPlayer, Player exe in \Windows folder.
I use info from http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=110237&whichpage=15, freeboy post.

my mp4 touch screen freezed and turned off. Now it wont turn on. please help

how do u put videos on ur innovage and play them

that depends, when you bought the mp3 player did it come with an USB charger?
also, do you have to put batteries in it?

if A is true and B is false it is charging, else check the manual or post the actual name of the mp3player in here

yes i river has got customer support in online but i don t know how efficient it is if you had brought it from india , you better contact the vndor and ask for its warranty support man or else give a try connect the i river to another computer with windows xp (i prefer) and then install the software bundled up with your device and try to format the device via the software and then disconnect the device and power it on it will work i think