How to delete video files from iriver e100 mp3

MP3 players can only play music files in mp3 file format. You need to convert your CDs to mp3 music files onto yourcomputer or download them from the Internet and then copy them to your MP3player.
You can do this using Windows Media player and Rip the CDs - Media Player willcreate 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

The iRiver E100 uses iRiver Plus 3 to manage music, pictures, and more. iRiver Plus 3 can be downloaded for free here:

http://local.iriver.com/mas/download/downloadView.asp?selectPart=cateCode&findWord=01&sno=852&page=1&cateCode=01

1. Insert the installation CD into your PC to display the installation process screen.
2. Select iriver plus 3 and click the Install button.
3. Complete the installation process by following the on-screen instructions.
4. Turn on the iRiver E100, and then plug it in to the computer using the USB cable.
   
5. Open iRiver Plus 3.
   
6. Select the desired files / folders in your PC and drag & drop Music, pictures, etc. to the drive which appears as the product.

If you would like, there is a manual available here:
http://211.39.137.201//download.asp?filename=2008111114270150302.zip&filepath=/file/Down/

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Try this method
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Hook up your mp3 player to your computer
Go to your desktop and double left click on "My Computer"
When it opens you will see listing that says "Devices with Removal
Storage" your mp3 player should be listed there.
Right click on your mp3 player, and a window will open, right click on
"Open" and now your files/songs should be visible.
Hold the left click down and drag it across all the files/songs that you
do not want this will highlight the files/songs you do not want, release,
right click and then click on "Delete"
Now you mp3 player should be clear of the files/songs you do not want.
Be careful and do not delete files needed to operate your MP3 player.
Good Luck,
I hope this helps
Please do not forget to rate me,
Thank You

i think 3gp or mp4 is what you want. Maybe the problem is about the converter. try to use
Video Download Studio

To delete files from your mp3 player using Windows Media Player 10:

http://www.microsoft.com/windows/windowsmedia/knowledgecenter/mediaadvice/0085.mspx#EDF

To delete files from your mp3 player using Windows Media Player 11:

My Directions:

1. Connect your mp3 player to the computer

2. Open Windows Media Player

3. Click on the icon of your Mp3 player on the left-hand side of the Library

4. Click on the Songs, Tracks, or other Music Folder

5. Find a song or songs that you want to delete

6. Left-click the song once to highlight it

7. Press the “Delete” button on your computer’s keyboard

If you want to delete stuff from your E100 while your actually using it then you go to file manager in the menu, find the file you want to delete and then hold the right arrow until it comes up with 'delete file'. If you want to delete it while your on your computer then find the folder of your E100, find the file and just hit the delete key or right click and 'send to trash' or drag the file to the trash.

well i can solve this its very easy there are 3 types of avi files there is just avi format 
there is a divx Which is also an avi file and xvid which is supported by the iriver e100
so yeah you can use this software on

http://www.download.com/YouTube-Downloader/3000-2071_4-10647340.html has the coolest downloading software it converts flv to xvid avi which is supported by the iriver e100

http://video.google.com/videosearch?q=IRIVER+E100&ie=utf-8&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&sa=X&oi=video_result_group&resnum=4&ct=title#..WATCH THESE..THEN GO HERE AND DOWNLOAD FILEhttp://www.any-video-converter.com/convert-videos-for-iriver-e100.php.YOU NEED TO DOWNLOAD VIDEO TO YOUR COMPUTER THEN CONVERT TO USE.RICHARDM69

http://www.any-video-converter.com/convert-videos-for-iriver-e100.php.DOWN LOAD N INSTALL.You need to download video to computer then convert.RICHARDM69