| VP30 | VP3 | On2 | |
|---|---|---|---|
| VP31 | VP3 | On2 | |
| VP40 | VP4 | On2 | |
| VP50 | VP5 | On2 | |
| VP60 | VP6 | On2 | |
| VP70 | VP7 | On2 | |
| VQC2 | Vector-quantised codec 2 (research) | eprints.ecs.soton.ac.uk | |
| VSSH | VSS H.264 | ||
| VSSV | VSS Codec Light | ||
| VSSW | VSS Wavelet Video Codec | ||
| VTLP | Alaris VideoGramPiX | ||
| VX1K | VX1000S Video Codec | Lucent | |
| VX2K | VX2000S Video Codec | Lucent | |
| VXSP | VX1000SP Video Codec | Lucent | |
| VYU9 | ATI YUV | ATI Technologies | |
| VYUY | ATI YUV | ATI Technologies | |
| WBVC | W9960 | Winbond Electronics | |
| WHAM | Microsoft Video 1 | Microsoft | |
| WINX | Winnov Software Compression | Winnov | |
| WJPG | Winbond JPEG? | ||
| WMV1 | FFmpeg MS WMV1 | ||
| WMV2 | Windows Media Video 8 | ||
| WMV7 | Windows Media Video 7 | ||
| WMV8 | Windows Media Video 8 | ||
| WMV9 | Possibly the same as VC-9, proposed new HD codec | ||
| WNV1 | Winnov Hardware Compression | Winnov | |
| x263 | Xirlink | Xirlink | |
| XLV0 | XL Video Decoder | NetXL Inc. | |
| XMPG | XING MPEG | XING Corporation | |
| XVID | XviD | xvid.org | |
| XXAN | Codec useing Huffman and RLE encoding paired with basic interframing | Used in Wing Commander 3 and 4 movies (Origin Xan Codec) | |
| XYZP | Extended PAL format XYZ palette | www.riff.org | |
| Y211 | YUV packed | ||
| Y411 | Same as Y41P | ||
| Y41B | YUV 4:1:1 Planar | Weitek | |
| Y41P | YUV 4:1:1 Packed | ||
| Y41T | PC1 4:1:1 with transparency | Brooktree Corporation | |
| Y422 | Copy of UYVY used in Pyro WebCam firewire camera | ADS Technologies | |
| Y42B | YUV 4:2:2 Planar | Weitek USA | |
| Y42T | UYVY with pixel transparency support | Brooktree Corporation | |
| Y8 | Grayscale video | ||
| Y800 | Simple, single Y plane for monochrome images | ||
| YC12 | YUV 12 codec | Intel | |
| YU92 | YUV | Intel Corporation | |
| YUNV | Same as YUY2 | Nvidia | |
| YUV8 | MM_WINNOV_CAVIAR_YUV8 | Winnov, Inc. | |
| YUV9 | YUV9 | Intel Corporation | |
| YUVP | Extended PAL format YUV palette | www.riff.org | |
| YUY2 | YUV packed 4:2:2 | ||
| YUYV | BI_YUYV, Canopus | Canopus, Co., Ltd. | |
| YV12 | Identical to IYUV but the order of the U and V planes is switched | ||
| YVU9 | Planar YUV format | ||
| YVYU | YUV packed 4:2:2 | ||
| ZLIB | LCL (Lossless Codec Library) zlib compression | www.geocities.co.jp/Playtown-Denei/2837 | |
| ZPEG | Video Zipper | Metheus | |
| ZyGo | ZyGo Digital |
'*' means any number/letter
'n' means any number