In this test I wanted to try how the Denver DVD-176 reacts to plain MPEG1 and MPEG2 files on a regular data CD. I have made a standard CD with MPEG1 (VCD resolution, 352x288) and MPEG2 (SVCD resolution, 480x576) files.
I encoded all files that I tried with TMPGenc v2.57.41.146. They were all in PAL-format. The VCD and SVCD files were CBR (Constant Bit Rate) and the CVD were VBR (Variable Bit Rate).
Here is a table that explains the structure of the CD with MPEG-files that I made. It also has information about which MPEG's that played as they should.
Directory/File |
Information |
Outcome |
|
---|---|---|---|
\ | Root directory | ||
VCD.mpg | VCD (352x288), MPEG1, 1150 kbit/s | Played OK! | |
XVCD_2M.mpg | XVCD (352x288), MPEG1, 2 Mbit/s | Picture stutters occationally, sound is OK | |
XVCD_3M.mpg | XVCD (352x288), MPEG1, 3 Mbit/s | Picture stutters badly, sound is OK | |
XVCD_4M.mpg | XVCD (352x288), MPEG1, 4 Mbit/s | Picture stops, sound is OK | |
SVCD.mpg | SVCD (480x576), MPEG2, 2520 kbit/s CBR | Picture stutters occationally, sound is OK | |
XSVCD_4M.mpg | XSVCD (480x576), MPEG2, 4 Mbit/s CBR | Picture stutters occationally, sound is OK | |
XSVCD_6M.mpg | XSVCD (480x576), MPEG2, 6 Mbit/s CBR | Picture and sound stutters badly | |
XSVCD_8M.mpg | XSVCD (480x576), MPEG2, 8 Mbit/s CBR | Picture and sound stutters badly | |
CVD_44K.mpg | CVD
(352x576), MPEG2, 1100/1900/2520 kbit/s VBR, 44.1kHz audio |
Picture stutters occationally, sound is OK | |
CVD_48K.mpg | CVD
(352x576), MPEG2, 1100/1900/2520 kbit/s VBR, 48kHz audio |
Picture stutters occationally, sound is OK | |
\VCD | Subdir with MPEG1-files copied from an actual VCD | ||
VCD.dat | Played OK! | ||
XVCD_2M.dat | Picture stutters occationally, sound is OK | ||
XVCD_3M.dat | Picture stutters badly, sound is OK | ||
XVCD_4M.dat | Picture stops, sound is OK | ||
\SVCD | Subdir with MPEG1-files copied from an actual SVCD | ||
SVCD.mpg | Played OK! | ||
XSVCD_4M.mpg | Picture stutters occationally, sound is OK | ||
XSVCD_6M.mpg | Picture and sound stutters | ||
XSVCD_8M.mpg | Picture and sound stutters badly | ||
\CVD | Subdir with MPEG1-files copied from an actual CvD | ||
CVD_44K.mpg | Picture stutters occationally, sound is OK | ||
CVD_48K.mpg | Picture stutters occationally, sound is OK |
The subdirectories in the table may need some explanation. What I did was to burn actual VCD/SVCD/CVD's and then copied the files in the MPEGAV/MPEG2 directories of those CD's. These files are not exactly the same as the original MPEG1/MPEG2 files, and that is why they are in the subdirectories above. I thought that it would be interresting to see if the player could play hte actual files from a VCD/SVCD/CVD disc.
Here is a picture of what's shown on the screen when playing MPEG CD's:
A menu is displayed, and it is possible to navigate in the directory structure and choose which clip to play. |
These are all the resolutions I have tried. Of course I could try out other resolutions, CBR/VBR and bit rates, but it takes to much time and does not give that much extra information.
So as an MPEG player, the DVD-176 seems to have problems with many resolutions and bitrates above standard VCD.