Tracks recorded in LP2 and LP4 are still editable on older players that cannot play MDLP, you can still edit track names, split, etc..

The two most touted MDLP player/recorders are the Sharp MD-MT77, and the Sony MZ-R900. Both are quite exceptionally, and like most new minidisc players are just slightly larger than two minidiscs w/ cases stacked on top of each other. The Sharp being the smaller of the two. A well written review of both is available at http://www.minidisc.org/brian_youn/.