Damaged Sector List file
File type: Various data file
A .dsl file is a Damaged Sector List containing information about damaged or unreadable sectors found on a DVD or other physical media.
MacTheRipper uses this file while ripping DVDs, including commercial DVDs.
Found 2 different file type records with the same dsl filename suffix.
File type category:
Various data file
Date updated: October 11, 2026
MacTheRipper creates a .dsl file when it encounters damaged sectors during a DVD rip. Other DVD-ripping software may also create files containing lists of damaged sectors. The list records the affected sectors so the ripping process can keep track of them.
A DSL file may be stored alongside the DVD's VIDEO_TS data and forms part of the files associated with that rip. It is supporting data for MacTheRipper, not the DVD's video content.
MacTheRipper is DVD-ripping software for Apple macOS and Mac OS X. A DSL file is generally useful only in connection with the ripping process that created it.
Open a .dsl file with MacTheRipper on Apple macOS or Mac OS X. The file is normally handled as supporting data by the ripping software rather than opened as a document.
It is most likely used for virtualization purposes, to mimic the exact layout of the DVD or to help repair it. If the related DVD rip is available, keep the DSL file with its associated VIDEO_TS data.
A .dsl file is not intended for conversion. It is a sector list used by MacTheRipper, so converting it would not produce a useful video or disc-image format.
Software apps that create dsl files:
Apple macOS / Mac OS X
File type category:
Source code and script file
Date updated: November 15, 2017
Record marked as obsolete and not updated for a long time.
The dsl file extension is related to the Document Style Semantics and Specification Language (DSSSL) file format.
The dsl file stores some kind of style sheet.
Mime types:
text/dsss
text/x-dsss
application/dsssl
application/x-dsssl