Is there any real difference between MPEG-1 and MPEG-2?

[jase]

Hey all,

Just quickly, what is the difference between MPEG-1 and 2?

I know a general SVCD template has a higher bitrate and resolution than a VCD template (eg. in TMPGEnc) but what if I was to chose an MPEG-1 but then use the SVCD standard bitrate and resolution (say 2496 and 480X576)?
Would I end up with essentially an SVCD or would it be different?


Cheers



J

[condone]

what you'd have is an xVCD. VCD and SVCD are standards. if you use the SVCD template but replace the stream with MPEG-1, then that changes the Specs so it becomes an XVCD (if it uses an MPEG-1 stream its VCD, if it uses MPEG-2 then its SVCD, anything done to the resolution, bitrate, frequency, fps etc then makes it and eXtended VCD (MPEG1) or eXtended SVCD (MPEG2) (eXtended=X hence XVCD, XSVCD). if that's confusing i'm sorry, it took a little while for me to understand as well.

[revjake]

Also, MPEG-2 simply looks a whole lot better than MPEG-1, in my experience.

I'm sure there's data to back it up somewhere, but I can't quote you anything. As I understand it, MPEG-2 is basically DVD compression, whereas MPEG-1 is an older standard.

Personally, I can't wait until I can buy a set-top player that handles DVD, MP3, SVCD, VCD *and* DIVX, and isn't basically a TV-top PC.

[Mirror_Image]

Grab a big beverage, put your feet up, sit back, and read this excellent MPEG article at UC-Berzerkly:

http://bmrc.berkeley.edu/research/mpeg/faq/mpeg2-v38/faq_v38.html

[mickboss]

MPEG-1: better with <480x480 <1500 kbits/sec

MPEG-2: better with >480x480 >1500 kbits/sec



MPEG-1 is limited in resolution and bitrate. Above (+-) these specs MPEG-1 don´t give better quality

MPEG-2 is VERY good above 2000-3000 Kbits/sec and high resolutions.

MPEG-2 can also have interlaced frames, better VBR, more usable