NeoGenesis Sega Genesis/Megadrive/32X/SegaCD/MegaCD Emulator for XBox v20
http://xport.xbox-scene.comwhat's new:
Core:
- Some improvement to sector cacheing when playing real Sega CDs (see notes)
GUI:
- Added "Soften Display" to video settings configuration options
- "Sort Directories to top" was not working 100% correctly with items
that start with a non-alphabetic character - fixed
Notes
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When playing real Sega CDs discs (not images) the FMV can stutter occasionally.
Previous versions of NeoGenesis would try to intelligently buffer as much as
possible, but you never know where the next piece of data needs to be read
from the disc until it's already being requested. Since this is emulation,
there's no way to anticipate where the reads will be and store it. The best
that can be done is to read ahead a certain amount because usually data is
read linearly from the disc. This eliminates a good deal of stutter. However,
there is only so much one can do to compensate for scratched discs and the
XBox's ability to read CD media. Bear in mind that when (if) you listen to
audio CDs on your XBox they will not stutter because audio tracks are read
from start to finish and the XBox can buffer lots of data at the beginning.
This results in one pause before the track starts, but while the track plays
the audio data can be read much faster than it needs to be sent to the
audio output. In emulation, there is a short amount of time in between each
frame to read whatever data is needed from the disc, so only so much can be
buffered at a time. Trying to read too much data at once will result in
stuttering because you're waiting too long for all the data to come back from
the disc and not reading enough can result in too many individual CD-read
accesses which can also result in stuttering.
I did notice during some FMV games that they would requests CD sectors a few
behind what was currently being read (almost like reading backwards). The
previous versions of NeoGenesis had buffering designed only for forward-reading.
This one has some backwards buffering as well. This eliminates some more stutter,
but again, there is only so much that can be done to compensate for CD media.
If your CD games still stutter, I first suggest trying to clean your CDs. If that
makes no difference, then I suggest you copy the disc to an image file and use that
instead.
Enjoy!
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Topic: Neogenesis V20 (Read 246 times)