#$%^&*AU2015255247A120151203.pdf#####Abstract: Methods and apparatus are disclosed for facilitating online storage of files (e.g., audio tracks, video, etc.) for playback/access or sale/exchange by the owners of the files without violating copyrights that copyright holders have in the files. For example, by providing a playback service that does not store additional versions of an audio file when the file is transmitted to, and immediately played on, a user device without buffering, the present invention avoids violating copyright laws by not making copies of the file. Numerous other aspects are disclosed.WO 2007/133697 PCT/US2007/011439 1/3 100 124 REPOSITORY 102 104 106 EXCHANGE CUSTODIAL PLAYBACK SERVICE SERVICE SERVICE INTERFACE INTERFACE INTERFACE 116-- 126 128 114 INTERNET 18 INTERFACE INTERFACE 1 INTERFACE USER USER USER DEVICE DEVICE DEVICE 1 2 N 108 110 112 Fig. 1