So your actual "system" is to dump every file in the root of the directory, and now it's iBasso problem that this doesn't work for you?
Directories are your friend, embrace them.
I can tell from the tone of your post that you don't have many friends. (this is a joke, I am sure you have many close and wonderful friends)
Yes, that is my system. See, computers work differently than humans. Because of this, folders aren't really all that necessary. Every jukebox program (iTunes, MM, Nightingale, etc.), iPods, Zunes, Sony Walkmen, the X3, and even iBasso's own player read this stuff in the music files called meta-data, and can sort your music based on that. It's why you have all those crazy browsing options.
As an aside, more firmware needs an "Album artist" sorting option the way that Rockbox does, that's pretty awesome.
Any way, I can use that same card in literally all of my media players that accept SD cards. Cool concept. None of them have any trouble. The one little issue is that on one file format, the DX50 chokes. Now, you seem to think it's OK for me to say, my software will do X, and then I sell you something that runs the software, and it actually only does what I said it does some of the time.
I am glad that you don't run iBasso, as they themselves have admitted is a bug, or at least it's something that they intend to fix. Now, you can get all hissy, or you can read the tone of both my posts, and see that I am really not that worried about it. Is it a bug? Yes. Is there an easy fix should they take a while to implement the fix? Relatively easy. I can replace the ogg files, if need be. But the easiest course for I, the consumer, is for iBasso to fix the bug. So I emailed them to ask about it. I then shared the rather humorous response with the forum, as I am not the only person asking about the ogg issue, and so it's helpful to others know that there is a fix on the way.
So. Any other questions?