BitComet Support Team's BLOG

I can not list all the file types in pc world here. so if your file type is not listed, please try to get some help from this link:http://filext.com

It's also known as WMA Standard. Microsoft created it to compete against MP3, that was quickly becoming the de-facto standard format for lossy compression.

Even though Microsoft claims it is able to deliver the same quality as MP3 at half the bitrates, that statement is certainly false. A more realistic number would be same quality at around 25% smaller bitrates - and that applies to low bitrates only. At 128kbps, it is easily beaten by Lame.

WMA Std is the second most widespread lossy format (only losing to the ubiquitous MP3), mostly thanks to Microsoft's aggressive marketing tactics.

Windows Media Audio Professional

Windows Media Audio Professional (WMA Pro) was recently released to address limitations in WMA Standard. It supports multichannel encoding and high resolutions (24bit, high sampling rates)
Since it's backwards incompatible with WMA Std, Microsoft took the opportunity to make a high quality encoder out of it. Meanwhile ......

MPEG-4 Part 14, formally ISO/IEC 14496-14:2003, is a multimedia container format standard specified as a part of MPEG-4. It is most commonly used to store digital audio and digital video streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images. Like most modern container formats, MPEG-4 Part 14 allows streaming over the Internet. The official filename extension for MPEG-4 Part 14 files is .mp4, thus the container format is often referred to simply as MP4. Devices that play .mp4 files are referred to as MP4 players.

You can use mpcstar to open files with this suffix. http://www.mpcstar.com/

Ogg Media (OGM), meaning Ogg Media File, is a container format (for video, audio and subtitle streams). It was developed by Tobias Waldvogel and can do a few things the common AVI format cannot. OGM's features include in particular:

* Chapter support
* Multiple subtitle tracks
* Multiple audio tracks of various formats (MP3, AC3, AAC, Vorbis, LPCM)
* Vorbis audio support (there is no "correct" way for AVI to support Vorbis, making any attempt potentially incompatible and unreliable)

OGM support for Windows (Including Microsoft's Windows Media Player) is available via Tobias's own OggDS, Haali Media Splitter, VLC, or RadLight's Ogg Media filters (the last of which can also decode Theora video). On Unix-based systems OGM support is available in MPlayer, xine and VLC.

Fundamentally, the format is a hack of the Ogg container format, which had only been designed to support encoders endorsed by Xiph.org (website), the creators of Ogg. It......

MOV is a file extension used by the QuickTime-wrapped files. The format was created by Apple Computer to work with multimedia files. Though MOV files are quite often found in the web, to play them on Windows computer one has to install an extra component or convert to other format. MOV is a container format and can contain video, animation, graphics, 3D and virtual reality (VR) content or text (for subtitles, for example).

The advantage of MOV files is the ability to contain abstract data references for the media data. That means that they can be easily edited - no need to rewrite all media data after editing.

You can use mpcstar to open files with this suffix. http://www.mpcstar.com/

WAV is an audio file format that was developed by Microsoft. It is so wide spread today that it is called a standard PC audio file format. A Wave file is identified by a file name extension of WAV (.wav). Used primarily in PCs, the Wave file format has been accepted as a viable interchange medium for other computer platforms, such as Macintosh. This allows content developers to freely move audio files between platforms for processing, for example.

The Wave file format stores information about the file's number of tracks (mono or stereo), sample rate, bit depth, as well as the uncompressed raw audio data.

You can use mpcstar to open files with this suffix. http://www.mpcstar.com/

ASF stands for Advanced Systems Format. It was developed by Microsoft as part of the Windows Media framework. ASF is most commonly used for streaming media purposes. The format doesn't specify the way video or audio should be encoded. ASF specifies the structure of video or audio stream. Due to this encoded with different audio or video codecs the files will still have .asf extension (just like other container formats AVI or OGG).
Like ID3 tags for MP3 files ASF files can also contain objects representing metadata. For audio - artist, title, album and genre. For video - director. Files of ASF format support playback from digital media servers, HTTP servers, and local storage devices.

You can use mpcstar to open files with this suffix. http://www.mpcstar.com/

An audio file format is a container format for storing audio data on a computer system.

The general approach towards storing digital audio is to sample the audio voltage (which on playback, would correspond to a certain position of the membrane in a speaker) of the individual chanels with a certain resolution (the number of bits per sample) in regular intervals (forming the sample rate). This data can then be stored uncompressed or compressed to reduce the file size.

You can use mpcstar to open files with this suffix. http://www.mpcstar.com/

First, we should tell the difference between FLI and FLC, as too often they are taken for different names of one format. In fact those files that have extension .fli are of older format. The new format was not limited to 320x200 resolution and had better compression. The files of the new format got the extension .flc. There is also FLX files which are a slight variation on the standard FLC format. As both names become widespread and refer to the same variations of the same format we use FLI/FLC when describing the formats.

FLI/FLC format appeared in 1993 as an animation format (developed by Autodesk, Inc). FlI/FLC format is widely used for scientific cartoon type movies (animated graphs, etc.). FLI/FLC movies are more deairable than MPEG as 640x480 movies can be played back at reasonable speeds on X11 workstations, PCs and Mac .

Rich Signell has a page with all you need to know to get started with FLI/FLC format at: http://woodshole.er.usgs.gov/operations/modeli......

Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. This can be contrasted to lossy data compression, which does not allow the exact original data to be reconstructed from the compressed data.

Lossless data compression is used in many applications. For example, it is used in the popular ZIP file format and in the Unix tool gzip. It is also often used as a component within lossy data compression technologies.

Lossless compression is used when it is important that the original and the decompressed data be identical, or when no assumption can be made on whether certain deviation is uncritical. Typical examples are executable programs and source code. Some image file formats, like PNG or GIF, use only lossless compression, while others like TIFF and MNG may use either lossless or lossy methods.

You can use mpcstar to open files with this suffix. http://www.m......