WMV Modification Without Reencode

[frmys]

Hi ,

Is it possible to modify or simply change wmvs encoded with wmv8 to wmv9 without re-encoding?

I am looking for a tool like AviFourCC comes with Xvid setup that can change video header or structure. Does somebody have an other idea and can advice tools- programs?

Thanks

[El Heggunte]

Is it possible to modify or simply change wmvs encoded with wmv8 to wmv9 without re-encoding?

SFAIK, that's not possible, OR, at least, would not be "functional". WMV-9 is very different from the versions 7 and 8, and not backward-compatible --- so, a WMV9 decoder will not decode WMV-7 nor WMV-8.

By the way, why would you want/need to do that ?

[frmys]

As you are aware HDTVs can play wmvs from their usb port. On computer , for sure , there is no playback problem , all wmv version 7-9 can be played. Wmvs that are not encoded with wmv9 can not be playyed on HDTV.

I am looking for a simple solution for converting-changing between formats for wms that are not encoded with version 9 or solve compatibility issues with some wmvs encoded with version 9.

As wmv is a speacial format , audio&video can not be merged in different containers and simple tricks that i use for avi , mkv or mp4s does not work(Maybe AVS scripts and simple -almost loseless re-encoding can help???)

[guns1inger]

I would suggest that only a small number of models can play WMV files. It is not a widely supported format.

And as it is a lossy compression format, the only way to get close to lossless would be to use huge bitrates and get large files.

[jman98]

WMV is an exotic format for the most part. As guns1inger points out it's not widely supported. There aren't a lot of tools to deal with it. There's nothing to stop you from re-encoding to better supported formats. If your source is anime, trust me, you're not going to destroy it by re-encoding. In fact you probably wouldn't even notice a difference.