And buy what exactly? There isn't anything out there that comes close, the X5 is the closest. Mind you I could of course get something much more expensive but I refuse to pay more for my DAP than I did for my laptop lol
I'm in exactly the same boat as you. The X5 was shaping up to be the answer to my problems, but now I've had to totally exclude it as an option, purely because of this file limit issue. And it sounds like there are no plans to resolve it.
File limits in general are a pain, but 5800 is even less than players a decade old. I've maxed out my 160gig Cowon X7, and that's got about 9000 songs on it (mostly ogg at 160) - I think the limit on that is 11000, or something. I have another 9000 or so off-player.
It seems like such a backward step, especially when one of the main selling points of the X5 is its ever expandable memory, only limited by the size of available cards (and any upper limit of the hardware, which is presumably in the region of TBs). Infinite fair play to James and the Fiio team for keeping their fanbase and other customers in the loop during development, and it sounds like it's generally fantastic value for money, but the expandable memory seems to be a bit of a pointless and empty claim. It's a real shame, especially considering one of the top things people wanted in the X5 wish list poll was a decent amount of storage.
It sounds like the iBassos don't have the same problem (and the DX50 now has a stable Rockbox, so one assumes the 90 and 100 will also get RB at some point) - can anyone confirm? I'm not sure about AKs, but they're silly money (even though the 240 looks to be my perfect DAP).
I'm now looking at the Calyx M as the potential next best option (obviously pending reviews whenever the damn thing is released), otherwise it's a wait to see what the Fiio X7 and any other next generation players bring.
I just don't get it, though. If an open source piece of freeware like Rockbox can easily get round file limit problems, why are funded companies still finding it so difficult, and why is the X5's limit from the (relative) stoneage?!?!?!?