The DVD video may then be re-encoded by the application's VBR encoder. The user is able to choose how the compression is to be distributed across the DVD. DVD Shrink can automatically re-compress video, to as little as 39% of its original size, depending on the aspect ratio of the original DVD (with a corresponding loss in quality) to allow it to fit on a standard DVD±R(W), a Dual-Layer DVD+R, or any user-defined custom size. When "Deep Analysis" and "Adaptive Error Compensation" options are selected, the quality of the resulting DVD is improved. These options are more time-consuming because DVD Shrink runs through the DVD once doing the analysis, and then again doing the transcoding. The transcoder in DVD Shrink was unusual at the time of its release in that it employs compressed domain video processing technology to avoid a full decode and re-encode of the video stream. This boosts performance significantly as only part of the video stream is decoded and scraped.