A method for reproducing media items using a first entertainment device, the first entertainment device being operable to communicate with a portable entertainment device via a wireless communication link, and the first entertainment device comprising media reproduction means operable to reproduce one or more media items stored on a removable storage medium, the method comprising: reproducing a first media item using the media reproduction means, the first media item being stored on a first removable storage medium; generating, using a user interface associated with the portable entertainment device, a media list of one or more media items for reproduction by the first entertainment device; collating the media list at the first entertainment device, whilst the first media item is being reproduced by the media reproduction means; designating, at the first entertainment device, a second media item as the next media item to be reproduced by the media reproduction means after completion of the reproduction of the first media item, the second media item being selected from the media list collated at the first entertainment device; and detecting, whilst the first media item is being reproduced by the media reproduction means, whether the second media item is stored on the first removable storage medium, and, if the second media item is detected as not being stored on the first removable storage medium, storing media data relating to the first media item to a local storage medium, so that the first media item may be reproduced in dependence upon the media data stored in the local storage medium to allow the first removable storage medium to be exchanged with a second removable storage medium associated with the second media item whilst the first media item is being reproduced by the media reproduction means. reproducing a first media item using the media reproduction means, the first media item being stored on a first removable storage medium; generating, using a user interface associated with the portable entertainment device, a media list of one or more media items for reproduction by the first entertainment device; collating the media list at the first entertainment device, whilst the first media item is being reproduced by the media reproduction means; designating, at the first entertainment device, a second media item as the next media item to be reproduced by the media reproduction means after completion of the reproduction of the first media item, the second media item being selected from the media list collated at the first entertainment device; and detecting, whilst the first media item is being reproduced by the media reproduction means, whether the second media item is stored on the first removable storage medium, and, if the second media item is detected as not being stored on the first removable storage medium, storing media data relating to the first media item to a local storage medium, so that the first media item may be reproduced in dependence upon the media data stored in the local storage medium to allow the first removable storage medium to be exchanged with a second removable storage medium associated with the second media item whilst the first media item is being reproduced by the media reproduction means.