Erwin Craps - IT Helps
Erwin.Craps at ithelps.eu
Fri Feb 15 10:03:41 CST 2008
It's not recommended to convert video to another format, it's very time consuming and you will loose quality because you convert from one lossy compression to another. But of course it depends on your personal needs and quality standards. A Gif file is a 256 color (maximum) color picture. A animated GIF is a sequence of GIF pictures, each picture (frame) has a specific time to show. So U you have for example 3 frames; Frame 1 displays 0.5 seconds, frame 2 shows 1 second and frame 3 show 0.1 second and it starts over again. This technique is very efficient for animated pictures and low bandwith. A lot of internet banners are in animated GIF. Another advantage is that the background color can be transparent so it blends in a website. AVI and MPG/MPG are video formats having a constant frame rate per second. For internet usually 15 frames a second. DV and DVD has 25 frames a seconds, PAL 29,97 frames (or something) seconds, NTSC 30 I believe. AVI and MPG/MPEG these files can be compressed with different codecs. So its possible that one MPG files plays normaly, another does not show any image or sound because your computer does not have the appropriate codec. Codec = coder/decoder Erwin -----Original Message----- From: dba-tech-bounces at databaseadvisors.com [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Susan Harkins Sent: Friday, February 15, 2008 4:25 PM To: DBA Tech List Subject: [dba-Tech] A few questions about media files I have a couple of quick questions about media files -- I can look these up later, but I thought I'd ask incase someone knows off the top of their heads -- would save me some research time. 1.) Do MPEG, AVI, and GIF files support both sounds and video? 2.) Can you convert a media file to another format? If so, can you recommend a product? Susan H. _______________________________________________ dba-Tech mailing list dba-Tech at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/dba-tech Website: http://www.databaseadvisors.com