There is an audible difference when using one. 48 hour repair turnaround is also available. Some have found their quality to be fine while others complain that they are too spotty. It seems a lot of people agree that the samplers are typically good enough for drum loops but not good enough for vocals. The smallest unit of sound on a CD is a frame.
Instant start means a start time in the hundredths of a second.
This FAQ doesn't consider a CD player to be a DJ CD player unless it has pitch control. Although there are many DJs who use traditional CD players for their work, that sort of list would be better suited for Consumer Reports to tackle. Although these were pulled from a Denon specific document, most of the suggestions are applicable to all CD players. Usage Tips Use sticky on one side clean lamination sheets to protect the display from scratches. Support the back of your rack mounted unit with a sturdy brace made of metal or wood.