Sanyo Mpeg Camcorders
Video Playback Formats and compatibility?
Hello
I have a Creative Vision W, the specification reads : compatable with video formats AVI, WMV9, MPEG1, MPEG2, MPEG4-SP, MJPEG, DivX 4.x/ 5.x, XviD-SP. i wish to buy a digital camcorder to take with me travelling in order to store and view the videos from it directly using the Vision W. The problem is ofcourse on the specifications of the various camcorders it says video format mpeg4, some specs state the AVI format which is fine as i know this is compatible with the Vision W. However i would like to buy the sAnyo Vpc-C40 but all i know is from the spec is : ‘The Xacti C40 records natural-looking MPEG-4 video images at 640 x 480 pixels and 30 fps’ Is there a risk here that some conversion is required between the Vision W and the camcorder. Or in short is mpeg 4 the same as mpeg 4-sp?
Thanks
MPEG2 and MPEG4 have what is called profiles and levels that define the complexity of the bitstream decoders can handle.
For MPEG-4
SP refers to Simple profile
ASP refers to advanced simple profile.
Most MPEG-4 players will do ASP but with exceptions (no global motion and no quarter-pel motion estimation) . Actually, this variation of ASP is more or less a defacto standard. SP is a subset of ASP, so pretty much everyone can do SP.
Divx is in effect MPEG4-ASP (with the exceptions mentioned above).
Sanyo does not specifically say if it supports SP or ASP, but based on the allowed bit rate, (2 Mbits/s) I suspect it is ASP .
They do say that their files are played by Quicktime and they also provide Ulead DVD Movie factory which should allow you to save your recordings into a format compatible with your Creative player (or even DVDs).
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