If I understand the review, you're limited to 60 macros, in addition to the device macros on the main page. If you could accomplish your task without a macro, then you have 576 buttons (48 buttons per device * 12 devices) to play with, using the 4x3 button layout page scheme. If you require an entire line for each button (for long CD titles), then you will be limited to 16 buttons per device (4 per page * four pages per device), or 192 full-line buttons, again, not counting the device buttons on the main page. Of course, you'll need to reserve some of these pages and buttons to store the primitives for macro building.

While the MX-1000 seems ideal for TiVo and DBS control, I'm of the opinion that the Pronto is still the most appropriate controller for CD and DVD juke boxes.