So, I played with the auto playlist.

Created 2 auto playlists (I'm not going to use the internal storage of my device, but I could have)

Playlist SD1 :

Auto playlist parameters for SD1

-> Must be in wished playlist [To store all music set in playlists in the same SD to avoid issues with relative path on the device]
-> Artist must be equal to [for artist that start with numbers I selected them manually (I don't thing regExp are supported)]
-> Artist must start with [A;B;C;D;E;F;G;H;I;J;K;L;M]
-> Limit display to [235000] Mb

Playlist SD2 :

-> Must not be in [Playlist SD1].


SYNC Parameters on each SDs.

For SD1 :
Auto-sync --> Device : Playlists -> Checked all the playlist selected in Playlist SD1's first parameter + Playlist SD1
For SD2 :
Auto-sync --> Device : Playlists -> Checked only Playlist SD2

Might be a bit tricky, but it should work.


[EDIT - Cleaned the post, and edited to actual solution]:

Yes, AutoPlaylists are dynamic, created when called for. The sync setup should also work.

An alternative would be to find some equal split among the files (like all Album Artists till M on SD1 and all Album Artists N and non on SD2).

Thanks for the answer !

Nice I'll try to figure it out with an auto playlist and the autofill.
Are they dynamic ? Or do I need to edit/create them every time ?
Also is it possible to sync automatically one drive at a time in a specific order ?

What I'm planning to do is :

--> Create a playlist "00 - Not sync on SD1"
--> SD1 : Sync all playlist (but 00-..) + fill randomly.
--> SD2 : Sync 00 - Not sync on SD1

--> Enjoy ?

Depending on your answers, I might think about doing a script in my free time.
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Although It could be nice to see such a feature implemented, with lossless formats I don't believe my device to be the only dual sd, it only seems logical to me to add such a possibility.
Maybe an interface added to map to a device profile a few storages, there would be a need to register them by a signature so if a drive letter changes (a hidden file at drive root ?), it wouldn't cause an exception.
Then you could create a virtual "raid" at least show it like this on the media monkey interface, by simply filling one drive at a time (perhaps add a parameter to define how much space to leave on each drive) you'd switch on the next...

I think the only bothering subject that could come up with such a feature would be the playlist management/generation.

But then it's only suggestions !

Keep up the good work.
Many thanks !

MediaMonkey can't do this, however there is the Criteria of Synchronization Status which can be used to exclude files from an AutoPlaylist synced to a specific device (ie. card).

Hello,

I recently bought a FiiO X5 III, upgrading from an X1 (first gen)
This device can slot 2 micro sd, and also has an internal memory storage.

I can perfectly see the 3 drives in MediaMonkey.
2 SD at 238gb and an internal storage at 30gb (let's say A,B and C)

I wish to sync all of my music library (which amount to ~350gb) to my music player.
But I don't want to manually select the music that is going to A, B and C.
What I want is to achieve something like a virtual raid, 3 storage units (or at least the 2sds) => one device.

Right now when I connect my X5 to my computer, I'd have to define a profile for each of the SD and the X5.

But is it possible to have MediaMonkey automatically manage the sync, in a way, it would decide to store on another storage when one is full ?

I've already found a similar topic but I'm not sure if it's relevant or not ?
https://www.mediamonkey.com/forum/viewtopic.php?t=88030

Thanks.