[mythtv-users] artifacts in pvr-150 recordings, only recently

[jarpublic at gmail.com]

On Fri, Mar 6, 2009 at 11:20 PM, John Drescher <drescherjm at gmail.com> wrote:
>> I think these show up while commflag is running, because the recording
>> actually started like an hour before. From what I found in the
>> archives these seem to just confirm that there is corruption in the
>> mpeg2 file. The artifacts only show up for a couple of frames and
>> occur randomly from a few seconds apart to as much as 10 or 15 minutes
>> apart.  People in the other threads suggested that this is caused by
>> pci latency or running out of system resources. It is a brand new
>> system with a ASUS M3N78-EM motherboard, AMD Athlon 64 X2 7750, 1 GB
>> of RAM, I am recording to a 640 GB SATA drive, and two old 160 GB IDE
>> drives in a RAID0 array, all in the default storage group. I feel like
>> I am getting closer to the problem but at the same time I am stumped.
>> I can't think of anything I did that would cause the recordings on
>> Sunday afternoon to be fine, and everything since the early hours of
>> Monday morning to have problems.
>
> Try some high bitrate recordings to just the SATA drive. If you have
> to remove the ide raid 0 from the group for the test.
>
> John
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I run the OS off of the SATA drive also. I figured it could handle it
better. Plus I only have one tuner and it is SD, so I didn't
anticipate any I/O problems. Also this drive setup was unchanged from
when it worked and didn't work. But I think it is a good idea to try
recordings to each drive separately to see if it has to do with the
drive i/o. I will look into that next.