Multi disc sets out of order in car

I have a couple of hundred albums ripped to a USB stick for use in the car. I found this problem on my Tesla and also on my Lucid. Multi disc sets wind up jumbled by track and nothing plays in the right order. I have dragged the albums into Mp3tag and everything appears fine but when I go to save them, the track order is jumbled. Is there any fix for this? Thanks.

Which data do you have on offer in the files so that the player can group them together?
Which is the player's sort criterion?

Screenshots and information about tag fields help in many cases to get more detailed suggestions.

Thanks for the response. This album is a 2 disc set. It was numbered 1-01, 1-02 and then 2-01 etc. I tried renumbering it in MP3tag thinking I would create one album with numbers in proper sequence.

But in the car it gives me 2-01 first, even thought it was remumbered, then main title which is 1-01. It seems to grab tracks from disc 2 and sprinkle them at random in the display, which is here:

It does this on several albums… a 3 disc set is really a mess. I have no idea what method the car is using to decode this.. it’s the same on a Tesl and a Lucid. Hope this helps…

Do you have the same numbers in TRACK as you have in the filename? (The screenshot does not show the track number, unfortunately)
TBH I doubt that any car player evaluates the field DISCNUMBER.
So I think the player has to be tricked - either with an ascending number in the field TRACK - but that could be a combination of DISCNUMBER and TRACK so that
1st track 1st disc gets -> 101
2nd track 1st disc gets ->102
1st track 2nd disc gets -> 201
etc.
Try Convert>Tag-Tag for TRACK
Format string: %discnumber%$num(%track%,2)

If this still does not help, it could be that this combined number has to be added to the field TITLE - but right now it does not look like the player sorts by the title

Thanks.. will try… not sure I understand this:

I assume that you already have data in TRACK and in DISCNUMBER.
The contents of both fields gets merged to TRACK - and MP3tag does that for you for all the selected files in 1 go.
In the function Convert>Tag-Tag you have to set field - and that would be TRACK.

A quick search of Google suggests that the "Album" sorting is based on filenames when using the Tesla media player. So make sure your filenames start with Disc#-Track# then Title is probaly the best option. If you sort your albums into separate Albumartist\Album folders it may help as well.

Thanks.. will try… see if it works and solves it.