A .ecl file is an Encoder Control List file. You will often encounter these files if you are saving a project with the Cinema Craft Encoder (CCE). When opened in the Cinema Craft Encoder it loads the saved settings for input and output files.
The Cinema Craft Encoder is often regarded as the highest quality MPEG-2 encoder available. For new users, it can be used with DVD2SVCD to easily convert, DVD to DVD, DVD to SVCD, AVI to SVCD and AVI to DVD. You can also use it with DVDRebuilder to make DVD backups. The resulting quality is usually very high (depending on the input)
