@Shanling I've bought the M1S last week and it's a great small DAP - everything is really matching my expectations, but there is one flaw - I've read, that the database limit for the library is 20.000 (or even 15.000) tracks? Unfortunately this is a "no go" for me, because my I have a music library of ca. 30+ thousand tracks (didn't tested it yet, now using a SD Card with 12.000 tracks on it). I've read in the earlier posts, that using the folders it is not limited, but this is not what I need - I often don't listen to single albums, but have everything on shuffle, all tracks, so if I understand this correctly, this doesn't solve my issue here. Is there any chance a firmware update could disable that limit or make it higher, maybe 40.000? I know this will make the interface slower, but I think every user should have the choice - slower UI oraz database limit. Maybe this could be an additional option in the settings?