A&K - Q. Copying tracks in bulk from a NAS or other networked repository to microSD in the player, not all tracks are copied?
Bulk transfers of audio files to a microSD should be done locally on a laptop/pc, and once completed, you should transfer the microSD card to the A&K product. (This applies to products such as BluSound Vault and other network attached audio repositories).
If you transfer a large amount of files while the SD card is inserted, the SD card may affect the product.
Use of external memory cards is at user's own risk. Astell&Kern is not responsible for lost or corrupt data stored on 3rd party manufactured memory cards.
It is recommended to transfer files with the SD card removed from the SR25.
After transferring the file, insert the SD card and proceed with Media Scan.[Settings-System Reset-Initialize media scan]"