Cakewalk Bundle (BUN)

Cakewalk by Twelve Tone Systems (later Cakewalk, and now Roland) uses a "bundle" archive format to encapsulate all the files connected with a project of the Cakewalk Project (WRK) format. This is used when you want to back up or transfer an entire project all in one file. This version is used in older Cakewalk versions. Newer versions use the CWP project format instead, with the CWB format for bundles.

Other Cakewalk file formats:
 * Cakewalk Dump Request Macro (.drm)
 * Cakewalk Instrument Definition File (.ins)
 * Cakewalk Sample Definition File (.sfz)

Links

 * Official Cakewalk site
 * Tips on backing up - Bundles