Editing Portable media player (section)

==== AMV ====
{{main|AMV video format}}

The image compression algorithm of this format<ref>{{cite web |last=Israelsen |first=Paul D. |date=1993-09-21 |title=United States Patent 5247357 |url=http://www.freepatentsonline.com/5247357.html |access-date=2007-12-07}}</ref> is inefficient by modern standards (about 4 pixels per byte, compared with over 10 pixels per byte for [[MPEG-2#DVD-Video|MPEG-2]]). There are a fixed range of resolutions (96 × 96 to 208 × 176 pixels) and framerates (12 or 16 [[Frames per second|frames]]) available. However it can be used with limited hardware requirements. A 30-minute video would have a filesize of approximately 100 MB at a 160 × 120 resolution.<ref name="codecdoc">{{cite web |author=voroshil |date=2007-10-15 |title=AmvDocumentation |url=http://code.google.com/p/amv-codec-tools/wiki/AmvDocumentation |access-date=2008-04-06 |publisher=Google Code}}</ref>