How do i download a video into SL?

[LordHarley Nightfire]

It's in WMV format and I use Phoenix viewer.

[Ansariel Hiller]

You cannot upload videos into SL. Videos that can be seen within SL are hosted on other sites, such as YouTube.

[Shockwave Yareach]

1, WMV will not work in SL at all.  You will have to transcode it to a hinted MOV file with Quicktime Pro to be visible inworld.

2, you will need your own server on the web to hold the file.  Then you just put the media setting for your parcel to the URL for that file. 

3, everyone will be able to start at different times.  If you wish for everyone to watch a movie and see the same frames at the same time, that's very complicated and involves streaming software on the server itself to output the same data to each and all in the parcel at the same time.