Originally Posted by wernerleitmann
-What are the most common files accepted by the DAC through USB? I tried some flac hi-rez files, they don't play
The unit is great, but I'm confused a bit on the issues.
I was in such a hurry trying to re-type my original replay that was lost when Win 8 automatically rebooted that I don't think that I answered all of your questions. Please accept my apologies. Regarding the USB "A" (rectangular, as found on a computer) ports found on the front and rear of the unit, they have relatively limited playback capabilities:
The Ayre DX-5 Blu-ray Disc Player is equipped with two "A" USB ports, one on
the front panel and the other on the back. You may use either to plug in a USB
drive stored with digital music, movie and photo files.
The USB ports are rated to provide a maximum of 5V, 500mA power to the
USB drive. It is sufficient for all USB thumb drives and flash memory card
readers, but may not be sufficient for USB hard disks. It is strongly recommended
that you use a USB hard disk with an external power supply.
This unit supports “USB Mass Storage Class Bulk-Only Transport” devices only. Most
USB thumbs drives, portable hard disk drives and card readers conform to this device
class. Other USB devices such as MP3 players, digital cameras, and mobile phones
may not be compatible.
Supported USB drives must be formatted with the FAT (File Allocation Table) or FAT32
file system. Drives formatted with NTFS, HFS+, or exFAT file systems are not supported.
In some cases, an incompatible USB device may cause the player to stop responding. If
this occurs simply turn off the power, remove the USB device, and turn the player back
The player accesses the USB drive in read-only mode. In order to minimize the risk of
data corruption, it is recommended that you only unplug the USB device when playback
is completely stopped.
Please let me know if this information solves the troubles you have been having playing back directly from a memory stick. It is normally recommended to connect the computer to the "B" type input on the rear labeled "USB Audio Input" when playing audio files. Then your computer will have much greater flexibility in reading various data formats. Even then you may need to use powered hard drives (or a powered USB hub, although can sometime cause other problems with the "feedback pipeline" that keeps the computer audio data synchronized with the master audio clock built into the DX-5 (and QB-9).
The front and rear USB "A" ports are most useful for showing photos or videos from your digital camera on a big-screen display to a group of people. But you have to be careful with the formatting restrictions to make sure that everything is compatible.
EDIT: The main firmware used in the Ayre DX-5 is virtually the same as the firmware in the Oppo BDP-83. The only difference in the firmware is simply the "splash" screen at start-up and the screen-saver display. Both of these will display the Ayre logo rather than the Oppo logo. However we have changed our manual in many ways from the Oppo manual:
1) Reorganized it into an order that we felt was more logical.
2) Added a glossary of terms and included new drawings of unit and many of the screenshots.
3) Changed sections that were affected by the hardware changes we made. For example we removed the component video output completely, as it was not possible to upgrade its performance in a cost-effective manner to make it worthy of the Ayre name. Also, we added the USB Audio Only Input, as well as a dedicated HDMI Audio-Only output. When the USB Audio input is used, it "takes control" of the entire machine and displays information about the incoming USB audio data on the front-panel display. Another example is that the default settings after the "Reset" procedure must be changed to take into account the fact that the Ayre has only two analog output channels. This requires different settings in the Setup menu that are detailed in the Ayre DX-5 manual.
Nevertheless, in some situation you may find it helpful to refer to the original Oppo manual. In the case of playback through the front and rear USB "A" ports, there is more information that can be found starting on page 40 of the Oppo owner's manual. The latest version of this can be downloaded at:
Please see if there is any additional information in this manual that may be helpful to you also.
Ayre Acoustics, Inc.Edited by Charles Hansen - 4/1/13 at 6:03pm