superpop

I loaded all of my music, 90GB or about 16K songs onto a 128GB sd card and when I put it in the SD Card slot in my 2015 S550 it sees the card but indicates there is no music or video files. When I try it with a 64GB card with a bunch of the same songs it works fine. Does anyone know if there is a size limit on the SD card slot? Thanks.

Barkerp3nfo

Check page 219 of the COMAND manual. It has guidance on SD cards and other media.

channey

"COMAND supports up to 50,000 files
from one data medium. For data media with
more than 64 GB, only files in the following
folders are supported: music, pictures, videos"

I also have a 128GB card, but any time I load more than 64GB on to it, I get the same "no music" message you were getting. I'm not really sure what the COMAND manual means by music, pictures, videos folder.

nishboo

So if I load all of these, it technically should be fine, right?

Quadrobenz

I just had USB's made to hold about 10K songs transferred from original CD's to USB's in .WAV format. Using the .WAV format about 50 songs filled one 64G USB drive. I used the 64G size after hearing about problems some people were having with the larger sizes. We ended up spreading the songs over 12 USB's sorted by Genre. These play perfectly in my 2015 S65 and the 2018 E63S. When I bought my new SL65 last month I found out the SL still uses the NTG4 Comand system which does not support the full resolution, uncompressed music data files in .WAV. So I had a set of MP3 format USB's made. They work fine in all my MB's but compared to the .WAV format when played in the S65 with the Burmester 3D system the sound quality difference is apparent. My USB's were made each as a single folder so I do not know if there is an upper limit on how may folders can be on an SD card and still have the Comand system recognize them.