quicktime error (-50)

i get this error all the time and dont know whats going wrong
does anyone know what this error mewans and what i should do

Wish I had an answer but I’m just chiming in. I’m getting this error more and more recently. I don’t know if has anything to do with QT 7.0.4 but I’ve never had more problems with downloaded QT files since that update.

Try getting this codec pack K-LITE

http://www.free-codecs.com/download/K_Lite_Codec_Pack.htm

If you can help you should help