I almost never convert video files, which is why I haven't said anything on this thread until now, but I convert several audio files each day. For this, Media Coder is by far the fastest and the best - "best", referring to both sound quality and working stability.
Only the home version is freeware, the Premium version is
$300 $299, but they can do the same!! The only differences are:
If you are a cooperative user who needs serious use of the software for your business, we encourge you to purchase MediaCoder Premium. Comparing to the free version, it has following differences and features:
* Un-interrupted large volume batch transcoding
* No pop-up web pages
* Higher priority response for bugfix
* Custom splash screen
* Technical assistance and support
One reason I am telling this is, that Media Coder also comes in a $
300 $299
HD Video edition:
MediaCoder HDV (Hi-Definition Video) Edition
High-definition (HD) video refers to video system of higher resolution than standard-definition (SD) video, most commonly at display resolutions of 1280×720 (720p) or 1920×1080 (1080i or 1080p). High-definition image sources include terrestrial broadcast, direct broadcast satellite, digital cable, high definition disc (BD), internet downloads and the latest generation of video game consoles. MediaCoder HDV Edition is specially customized and configured for encoding hi-hefinition video contents to several industrial standard video formats like H.264, MPEG-2, MPEG-4.
Key Features:
* Transcoding hi-definition video contents in most popular formats to H.264, MPEG-4 or MPEG-2 in TS and MOV container (can support more if customer requests)
* 5.1-channel AAC and AC-3 audio encoding, supporting mixing 5.1-channel audio by individual waveform/PCM files
* Batch processing capability (customized process flow according to customer request)
* Real multi-threading design, optimized for multi-core processors (over 90% CPU utilization on quad-core)
* Easy-to-use user interface
* More suitable for enterprise/massive production use (no popup web pages, no Firefox dependency for advanced settings access)
http://mediacoder.sourceforge.net/http://www.mediacoderhq.com/solutions/hdv.html