Playback of a cd or dvd

I'm a video game programmer with 20 years experience in software, and have a reasonable understanding movie playback software.

I also have a Nikon (S6100) and the problem is nothing to do with PC memory or CPU speed. The Nikon creates a broken version of the MPEG-4 AVC H.264 format, which results in choppy playback. I've tried Quicktime, VLC and the cameras own player - ViewNX2 - same result for all of them.

Converting the buggy .MOV files the Nikon creates to a .avi format produces perfectly smooth (flawless) video, but with the sound out of sync. I can also create perfect quality (lower res) DVD video, but with the sound missing.

I have spoken to Nikon about all this and they are quite simply clueless and will take no responsibility. As there is no firmware up[date for this camera I'm taking the camera back, as it is basically flawed.

I've read a few sites with customers complaining about choppy video for this camera, so it looks like the model itself is flawed.

sounds like you will need to clean laser, there are cleaners you can buy out of walmart for this. Don't know if they work well, I take mine apart and use soft cloth and alcohol then letting dry, works fine for me.

Sound like a performance problem. Did you try updating your video and sound drivers?
You should also see if the Adobe Flash Player is properly installed as that is used for Youtube playback.

Use Internet Explorer to download this file:

http://winhlp.com/tools/resetdma.vbs

Run it.

Reboot system.

This can be a bit of a tricky one to figure out. My initial response would be that you have another program or process that is causing your computer to play 'choppy' video. When you have a newer computer that was recently working just fine and now all of the sudden the video is choppy, it is usually due to another process using CPU cycles that are so important to video playback.

Start playing a DVD, but don't go to full-screen mode. Open the Task Manager. Right-Click on the task bar and select Task Manager. Click on the 'Processes' tab. There is a column labeled CPU, click on the heading 'CPU' twice. This will order the processes in order from highest CPU usage to lowest. The top two processes will most likely be your DVD player and the process that is causing your choppy playback.If the offending process isn't essential (i.e. anti-virus), then click on said process and then click the "End Process" button.

Hope this helps.

Use compressed air to clean DVD driver.
Clean virgin DVD surfaces.
Use commercial grade cleaner for DVD drive.

Hi, sorry for the difficulty in using the system. I will advise you reload the operating system again. Make sure it's from the real manufacturer, I mean don't go for pirated. If it doesn't work, then back up your files and folders and format the system. I wish you the best.

If the heads become dirty, “NEED HEAD
CLEANING” appears during recording. During
playback, moreover, the following symptoms
appear.
≥Mosaic-like noise appears partially or the
sound is interrupted.
≥Black or blue mosaic-like horizontal stripes
appear.

When normal playback cannot be performed
even after the head cleaning
One possible cause is that normal recording
could not be performed because the heads were
dirty at the time of recording. Clean the heads,
and perform recording and playback again. If
normal playback can be performed, the heads are
clean. Before an important recording, be sure to
conduct a test recording to make sure that normal
recording can be performed.
≥If the heads become dirty soon after cleaning,
the problem may be the tape. If so, try another
cassette.
≥During playback, the picture or sound may be
interrupted momentarily, but this is not a
malfunction of the Camcorder. (One possible
cause is that the playback is interrupted by dirt
or dust that momentarily adheres to the heads.)

Get a cleaning disk and run it through the machine. Could be a dirty lens on the laser.

don't use Windows media player, Try a different one, like POWER DVD or WINDVD I have found playback on these to be better than WMP