newbie questions thanks

Searched the general discussion but did not find answers so need help with a couple of questions.

What is progressive rendering?

What do the extensions asx, ogm m2v asf vob mean? So far I have not checked any extensions, and it plays the movies but should I check them?

How do I syncronize subtitles?

thanks.

[Quietseb]

-extensions:
. asx and asf are ms file formats for streaming video (more precisely, asx are textual files that permit to access asf files; asf files can be accessed on their own too)
. m2v is mpeg2 video (while mpg usually is mpeg 1 or 2, video or audio or both)
. vob is file format used in DVDs [some people rip the vobs from DVD to HDD in order to watch their film, HDDs being much more silent than some DVD players]
. ogm is ogg media; it's a file format than can be used for various content, just as avi.

I would not use bsplayer to play vobs (sometimes it works, sometimes not and your DVD player software should play vobs well enough)
otherwise it's up to you.

- subs synching
have a look at fr0do's synching guide on doom9's site

BSPeter-addition: Another proggie to sync subtitles is SubSync.
I find it very easy and simple to use and it does its job perfectly.
You can find on http://users.pandora.be/vlad/subsync/index.htm

[prarie]

Thanks.