Some of them don’t even appear to have tags, the tag is totally blank for some songs, and then some others I get “ID3v2.3 (ID3v1 ID3v2.3 APEv2)”, “WMA (WMA)”, and “ID3v2.3 (ID3v1 Lyrics 3v2 ID3v2.3”.
Let’s take these one at a time:
ID3v2.3 (ID3v1 ID3v2.3 APEv2) - Perfectly fine. The APE v2 tag is added if you (or someone else) have run the files through the volume normalizing software MP3Gain. This portion of the tag is where the gain or reduction settings are held so that one song is not louder than another.
WMA (WMA) - Again, perfectly fine. Apparently, you have some .wma format files as well as .mp3 files. Not to worry, they play OK and cause no problems.
ID3v2.3 (ID3v1 Lyrics 3v2 ID3v2.3) - OK, problem. Lyrics are not supported on such a small player so you have to get rid of these. Re-saving in the current SAVE settings should eliminate these, but having never had a file with lyrics attached, I’m not 100% sure.
"the tag is totally blank for some songs" - Problem #2. What type of files are these? If they are .wav files, they won’t have a tag and the player will have to read the file info. Not a huge problem, the player will read them and (usually) play the files, but wavs take up an awful lot of space as they are uncompressed. A better format for these ‘lossless’ files would be FLAC, but I don’t want to go into that, given the problems you seem to be having with more basic stuff.
If however, these are .mp3 files with no tags then yes, these could be causing some of the problems you’re encountering along with the afore-mentioned ‘lyrics’ tags. You will have to create the tags manually. This means typing in the Artist, Album, Title, Genre, Track#, etc. by yourself and then saving the changes. MP3Tag does have a tag filling-in option, but I’ve never had reliable luck with the accuracy of the database it uses. Maybe others have, and can make some suggestions.
I’m not entirely familiar with how to use the program, like I said, the various threads say what to do, but not HOW to do it. I don’t really know what these Tags are.
Have you tried reading the Help Contents? Everything is very succinctly explained, from the basics to the more involved aspects. There’s even an online forum (like this one) for additional support.