HDConvertToX (HDC in short) is a gui aimed for converting video files (vob/mkv/avi/m2ts/ts...) with XviD or DivX or X264 or WMV codec, and muxed in AVI/MKV/MP4/WMV container.
The official change log for version 2.5.624.4217 is as follows:
added support to latest addition to x264
added in Strict NMT disabled alos b pyramid
added possibility to download HDC even if no official update is found
added make report to first panel
added Strict check for NMT. This option will enforce --weightp 0 --b-pyramid none --no-weightb
added better tooltip layout
added (was removed) delete of job folders. Also added a check before delete the job folder, it must be named "job"
added copy audio using ffmpeg. Useful when eac3to fails to extract audio (alpha)
fixed bitrate computing when No Audio is selected
fixed audio bitrate computing when Original channel is selected (or 5.1) and audio codec was ac3
fixed double message when loading custom ini
fixed handling of avi source. now hdc will automatically switch to DSS decoding if no mux in mkv is done
fixed audio bitrate computing when using flac audio (now guessed at 1600kbps for stereo and 2720 for 5.1)
fixed detecting of ar reported by eac3to (2)
fixed audio bitrate computing when encoding with multichannel (nero/aac/ogg)
fixed computing of audio size when more then one audio tracks is copied
added job numbering in queue
added possibility to log x264 encoding. The log will be avaiable in job folder and will be named HDConvertToX_x264_job+number_of_queue.log
fixed computing of audio size when using Nero VBR (alpha)
fixed copy of d2v files when using queue and test deinterlace or compression test