Drake DNP50/DNP50 AVW Network Media Player - Manual (Page 24)

22
Why won’t some media files play properly?
The video data bit‐rate used may have exceeded the recommended bit rate.
The video data bit‐rate is the amount of video or audio data used per second to store or play the contents,
usually expressed in Mbps (mega‐bits per second). Video encoded with excessive bit‐rates will not playback
smoothly in the media player, likely due to storage I/O bottleneck.
Visit http://support.iadea.com for compatible media format presets.
The media playback looks different on a PC compared to the media player’s screen. (Wrong aspect
ratio)
There are 2 major aspect ratios (width‐to‐height ratios) for video content, but many kinds of displays. If you play
4:3 video on a 16:9 display (or vice versa), a circle becomes oval, and the picture takes on a squeezed or
stretched look. To avoid this distorted look, adding black bars are a common technique.
The Network Media Player can be configured to automatically add black bars for certain types of displays. You
can set the output resolution in DNP50 / DNP50 AVW’s configuration menu to match the native resolution of
your display.
Some JPEG images cannot be played in the media player.
Progressive JPEG files are not supported. Please convert to baseline JPEG for maximum compatibility.
JPEG images can be either of 2 types: baseline or progressive compression. Baseline JPEG offers greatest
compatibility, while progressive JPEGs are suitable for web site images. Progressive images are downloaded and
displayed “progressively,” being rendered more clearly as more data is received over the internet. Progressive
images are primarily supported on PCs. For media appliances, make sure to save images as baseline JPEG in your
photo editor, or resave them as baseline JPEGs using free tools such as IrfanView (
http://www.irfanview.com/ ).
Does the media player support video streaming?
No. Drake DNP50 / DNP50 AVW / DNP100 Network Media Players play media files from local storage and do not
support real‐time video streaming over the network. This delivers an optimal viewing experience free of playback
quality issues such as stuttering, blocking, or blue‐screens.
The media player is not playing. What should I do?
Play list errors and scheduling issues are two major causes of playback problems. To determine if the problem is
caused by a bad playlist, just delete the playlist and restart the player. The player should loop through all media
files, indicating a fault with the play list.
If the playback is scheduled to play at specific time, check to see if the device is set to the right time zone on the
world clock. If nothing seems wrong, the time zone setting is often the reason the program is not played.