help with youtube unploading??

hi,i need help, i can't upload on www.youtube.com
i'm using "magix video deluxe 2006" and when i upload it says invalid format?
i also tried with Winavivideo converter,and it says when a converting "i need a decoder?? what is a decoder?

thank you and help please

 

can you play the video using windows media player?

 

no i can't

 

[bold]http://www2.sothink.com/download/dvd-player-codec.zip[/bold]

Download and install this codec, and then use your Winavivideo converter.

This codec is packed by www.dvd-easy-workshop.com with no virus nor spy or ad ware.

 

sorri i'm not good with computer
can you tell me step by step and tell me what i have to do
thank you

 

just download and install this
http://www.free-codecs.com/download/Codec_Pack_All_in_1.htm

 

thank you
i'll install right now

 

Download [ Codec Pack All in 1 6.0.3.0 ]

Download [ Codec Pack All in 1 6.0.3.0 - Mirror ]

Download [ Codec Pack All in 1 6.0.3.0 - Mirror ]

Download [ Codec Pack All in 1 6.0.2.9 to 6.0.3.0 Update ]

Which one? please

 

anyone it doesent really matter.