Verified answer

HD isn't compatible with the device. If they're from iTunes, download the standard definition versions.

I recommend you Altysoft Video iPod Conerter, it has professional version and free version, both of them can convert video to your iPod.

Altysoft iPod Video Converter is a iPod video converter that converts video files, DVD movies, YouTube videos, so you can play the videos on your iPod. Altysoft Video iPod Converter can convert all types of video files (avi, divx, xvid, flv, x264, vob, mpeg, YouTube, etc.) into the proper video formats(MPEG4, H264) that play on the iPod.

You may refer to this step by step guide, I followed it and convert video to mp4 video for my iPod, it works pretty well.

http://www.dvdintoipod.com/how-to-convert-dvd-vide...

Hope it helps. Contact me if you have any other question

I have used one iPod video converter and it can convert almost video formats to iPod supported format. It can convert video with fast speed and excellent output sound and image quality.

http://www.tipard.com/ipod-video-converter.html

It is easy to operate. Just few clicks are OK.

Hope it useful for you.

hi, do not convert it to avi. you need to convert it into iPod mp4 format.

here i recommend you a really powerful video converter for iPod.

it can help you to convert your videos such as MPG, MPEG, MPEG 2, VOB, DAT, MP4, M4V, TS, RM, RMVB, WMV, ASF, MKV, AVI, 3GP, 3G2, FLV, SWF, MPV, MOD, TOD, QT, MOV, DV, DIF, MJPG, MJPEG, and HD TS, HD MTS, HD M2TS, HD MPG, HD MPEG,HD MP4, HD WMV, QuickTime HD MOV, HD H.264, HD RM to iPod/iPhone MP4 Movies with high speed and excellent image/sound quality.

Free download it here:

http://www.aiseesoft.com/ipod-movie-converter.html

just have a try and i hope it will be helpful to you.

mp4 is the best of videos file, they must be corrupted.

try convert it to avi