I tested it using the user interface where you need a HDMI supported monitor to navigate, plugging the Sandisk in enables a USB detection to prompt on screen, you select the USB drive and all the files are listed, then it plays the file selected. Did not use the OPPO control app for iphone.
At Encel, the rep told me there is an app underdevelopment specifically for the OPPO105 so you wont need a supported HDMI monitor, whether this is correct Im yet to do the research!?
While I was at Clef, I got the rep to put the Marantz 6004 dedicated CD, I actually prefer the SQ signiture to this player than the OPPO, very musically involving and very detailed, it produced a quality that I liked, but there is no volume control or is it able to play files via the USB????
Tonite when i get time, Im hoping to get the normal OPPO app working and also try some other USB sticks or even portable HDD. The volume control is not as good as the M51, the M51 has a better range so you have better control over the entire range, volume control on the OPPO is very coarse and it doesnt give you that range especially the lower end!
FYI, The guys at Clef audio were not as knowledgeable as the guys at Encel. However Encel couldnt match the price from Clef.
Would love to hear more on the Oppo 105 vs. Marrantz vs. Nad