Posted a few weeks ago about my remote going out, well it's now 8 weeks and still no new free replacement. Trying to do my homework and think I have narrowed new caller to foxpro or WT. I don't understand all the various file formats that FP offers 4 in all and I googled 24 bit audio and after reading couple short articles I don't understand anymore than I did before. I'm in mid 50's blue collar laborer and very technology challenged. WT claims best sounds and true 24 bit sounds and equipment to reproduce those sounds. WT claims FP is using a play on on words and really don't have true 24bit sound coming out of their units. WT also claims the best live animal sounds as if FP sounds are hand blown calls being recorded. I'm very confused about the different file formats available and this 24bit controversy. Wish I still had my old JS cassette caller. Please explain all you can in simple terms these issues I'm questioning. I'm looking at dropping $600 bucks on a shockwave or a M21 which I think is WT top end unit. Not sure what I'm going to do with my alpha dog if I ever get that new remote that they have promised.