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To download the latest version of this software at any time [click here].

If you purchased more than 3 months ago you should be aware that you may need to purchase an upgrade to use the current version. For upgrade pricing go to www.nch.com.au/upgrade with your old key. If you want to try the new version but want to be able to restore the old version, please backup your Program Files sub folder containing the software. You will need to do this if you want to be able to restore the old version again.

Build Version Logs Follow:
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Version 1.17

  • Fixed installer for Windows 2000 and 98
  • Uploaded 2008-08-18

Version 1.16

  • Fixed Prism not freeing temporary files created at preview time
  • Fixed conversion to mpg losing audio stream in certain scenarios
  • Uploaded 2008-08-14

Version 1.15

  • Fixed Prism converting DVD without sound
  • Uploaded 2008-08-08

Version 1.14

  • Fixed list view bugs from Version 1.13 release
  • Uploaded 2008-07-28

Version 1.13

  • Fixed DVD "Create and Burn" and conversion issues
  • Fixed crashes while converting .rm files with internal decoder (avcodec)
  • Fixed sound disappearance in video player if rewinding .avi file
  • Uploaded 2008-07-18

Version 1.12

  • Fixed some video player issues with old Video Renderer filter
  • Now allows seeking to a custom position in a video player
  • Switched to ffmpeg3
  • Uploaded 2008-07-16

Version 1.11

  • FLV format settings are now saved correctly
  • Maximum allowed bitrate for MP2 audio is now calculated correctly
  • Removed "Microsoft RLE" from the AVI codecs list
  • Removed unsupported WMV formats
  • Will try to switch to FFMPEG if crashed or hung with DirectShow filters
  • Will not ask to use Switch format converter for .rm files
  • Uploaded 2008-05-20

Version 1.10

  • Fixed bug when sound suddenly stopped when converting 3gp files
  • Fixed issue with program crashing on startup
  • Fixed incorrect framerate issues when converting to mpg files
  • Fixed DRM Windows Media issues
  • Fixed bug causing failure to decode some Windows Media videos (12bpp)
  • Windows Media is always used by default for wmv and asf
  • Prevented standby and power off while converting and playing
  • Should not hang when converting mp4, 3gp, flv, avi
  • Removed unsupported duplicate of ffdshow Video Codec filter from the codecs list
  • Uploaded 2008-03-25

Version 1.09

  • Fixed bug when trying to convert to the odd video height
  • Fixed bug where Prism asked just once for overwriting the file
  • Fixed RGB5551 color-scheme scaling
  • Uploaded 2008-02-06
German (DE), French (FR), Italian (IT) and Spanish (ES) versions:
  • Uploaded 2008-02-07

Version 1.08

  • Added experimental "XBox" and "Play Station 3" modes to mp4 format
  • Fixed bug with mp4 PSP videos - can now be played on the real PSP
  • GUI slightly changed for mp4 dialog (resolutions list disabled)
  • Help changed for "Encoder settings"
  • Uploaded 2008-01-25

Version 1.07

  • "Add DVD" is now working again
  • Added custom exception message for the situation when the Explorer crashes while browsing for file
  • Changes for customization
  • Fixed issue with Prism crashing when converting 0.0 fps asf/wmv files
  • Updated LLib
  • Uploaded 2008-01-22

Version 1.06

  • Changed to Free and Plus versions
  • Added FLV format support
  • Added pixel aspect ratio support
  • Added preview feature
  • Added native MPEG4/MP3 for .avi format
  • Added command line support
  • Added Bring Prism window to front and play sound after conversion option
  • Completely refactored video library (significant conversion speed increase)
  • Fixed Video/Sound syncronization in video player
  • Fixed 5.1-to-Stereo sound conversion for AC3 sound
  • Improved "Add DVD" feature (removed gaps between VOB files)
  • Improved DV support
  • Uploaded 2008-01-03

Version 1.04

  • Added AC3 decoding via FFMPEG and liba52 library
  • Fixed multichannel audio issues
  • Fixed minor bug for "Add DVD" feature
  • Added video position indicator for conversion process
  • Fixed occasional crash when enumerating ACM Audio codecs.
  • Uploaded 2007-07-09

Version 1.03

  • Fixed issues with some directshow encoders (e.g. ffdshow MPEG2)
  • Fixed encoding to MPEG2
  • Fixed occasional failure to convert to windows media (because of sound codec)
  • Fixed timings for FFMPEG source
  • Changed direct show codec settings where filename is determined by codec name
  • Fixed occasional incorrect video timing (for 3gp, flv and mkv source files)
  • Added 3gp, mp4 and mov support
  • Added DVD source support
  • Uploaded 2007-07-03

Version 1.02

  • Updated video engine
  • Fixed Windows Media Audio codecs enumeration
  • Added MPEG Encoding support (using FFMPEG)
  • Uploaded 2007-06-01

Version 1.01

  • Updated video engine
  • Added FFMPEG video source
  • Fixed ACM sound codecs support
  • Minor GUI fixes
  • Uploaded 2007-04-11