Ok so I got home and tried this for myself. results: - Subdirs work and are recognised - smb mount works and is recognised - games start from mount - Slight lags and choppyness from time to time this was tested with CTR crash team racing rom (PSX) **EDIT:** Similar results with NFS both have about the same transfer speed of max 5MB/s "download" to the retropie **EDIT2:** No issues with "Metal Gear" and "Tony Hawk 2" Monitoring the Traffic shows Burst of download Traffic about 250 to 500 KB/s and not much load on CPU or memory for the latter 2... So I guess the lags are chalked up to the emulator ...