why convert mov file to avi will lost alpha

[scrimski]

Avis don't store alpha channels - simple as that.

The Indeo codec does store transparency, but I wouldn't recommend using compressed media for postwork.

[Mylenium]

i have try use quick time pro to convert

mov file to avi
but the avi aniation will lost the ahpha
whihe i import to ae the original mov file has alpha
but the avi converted from quick time have no alpha

any one could help me ? thank you very much

As already stated, very few AVI CoDecs in general do handle Alpha. If you're looking for a high-quality alternitive, try the free HuffYUV or the commercial Sheer Video. Still, since AE handles QT files just as well, I wonder why you are bent on working with AVIs.

Mylenium

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