User`s manual

Alcorn McBride Digital Video Machine DVM-7400 User’s
Manual Rev 1.5
90
Troubleshooting Guide /
FAQ
If you don’t find an answer to your question here, have a look at
our Knowledge Base at http://www.alcorn.com/kb/index.html.
We’re always updating it with new answers and useful information!
Q: I have several files on my Digital Video Machine. When I try to play
one of them, a different file plays.
A: All file names and numbers should be unique. You should not have,
for instance, two files named VID00005.MPG, or have a file named
VID00003.MPG, along with a PLY00003.LST. The Compact Flash
could also be fragmented, in which case you need to format it in the
DVM and re-copy the files.
Q: I have created a playlist using Windows, but the DVM reports an
error when I try to play it. What’s going on?
A: Windows sometimes uses its own filename extensions, or adds
extensions that are hidden when viewed in Windows Explorer. Make
sure that Windows Explorer is configured to show file extensions, and
make sure that file does not have two extensions (i.e. ply00010.lst.txt).
Q: Can I control the Digital Video Machine with your show controller?
A: Yes. There is a protocol file specifically designed to operate the
Digital Video Machine. If it is not already bundled in your version of
WinScript, check the protocols section located in our Library at
http://www.alcorn.com.
Q: What brands of Compact Flash Cards do you recommend? Where
do I get one?
A: We don’t have a brand we endorse, but we know cards from SanDisk
work in the DVM. You can typically get them from a local camera shop,
computer supply store, or online. They need to be ATA compatible.
Also check our Knowledge Base at http://www.alcorn.com/kb/index.html.
Once there, type in Compact Flash to see if we have added anymore
supported brands to our list.
Q: I copied MPEG files to a flash card, but when I press the test button
the LED flashes red. Why isn’t it playing my MPEG file?
A: The DVM-7400 test button plays the lowest numbered video file on
the flash card. Do the files you’ve copied follow the DVM numbering
convention (vidxxxxx.mpg)? Have you encoded the MPEG2 files
according to the information in this manual?
Q: I am trying to play a high bit-rate MPEG2 file, but the DVM seems to
have trouble playing it. The video is playing slow and I am seeing
distortion or ‘blocking’. What am I doing wrong?