When the MX-2424 first came out, I was also viewing the Mackie HDR-2496. I went with the Mackie. I bought it at the 1999 winter NAMM show. I use it day in and day out and it has never let me down. I have since discovered that the converters are much better than the Tascam MX-2424. According to friend/CEO Barry of IZ/Radar, the Mackie converters are equivilient to the Radar, I reciently just got a Mackie SDR, which is similiar to the HDR, but doesn't have a GUI, keyboard, or mouse. It's just a recorder. I got it for live gigs. the OS COULD support a 2 terribite HD. With the SDR. I can slide the removable HD out of it and slide it into my computer or my HDR for editing, OD's, or mixing. I personally love the stand-alone HD recorder format. It's just plug in and record. very quick set up time. I don't care for the Alesis HD-24, as it uses its own proprietery file format and must be converted to BWF using an optional "fireport" converter