I've been having some trouble with a Z110BT not reading an SD card, I also tried a 3200BT and it is also not reading the SD card. I've tried AVI formats, m4p formats for the I-pods, I've used the Aimersoft program to convert the files. The only thing I can think of is it's a 8gb SDHC card, has anybody else had this issue?

Did you try to tap the sd card icon again?

what exactly are u having trouble with reading the SD card or playing videos from it.

The SD card icon doesn't even light up on either unit. The Z says SD card error, and the AVHP3200 says unplayable format

Try a simple mp3 file. If it does work with that then the card is likely defective.

First of all, the SD will not read if it is not in FAT32 format. NTFS is a better/faster file system without the 4GB file size limit, BUT it's not compatible with this and that is the default format usually. So FAT32 (what Windows 98 was on btw.......) is the only file system it will read. Google: "format SD card to fat32". You will find several ways to do this. The card isn't defective if you actually copied the files on there on your PC side.

I had the same problem, it only play the music on it and I had the fat32 format, http://avic411.com/index.php?showtopic=12971 I was following this guide to conver the video, and copy to the card, do I need to make an folder for the video or ...?