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<blockquote data-quote="winterescape" data-source="post: 574228" data-attributes="member: 90370">Skips or stutter in recorded TV, slow SATA transfer rateThis post is a solution to a difficult to find (for me) issue I had, hopefully someone else with the same problem will stumble on this post.The symptom:Recorded TV shows, US over the air ATSC HDTV, would occasionally skip or stutter.I recently upgraded my HDD to a WD Black 750GB.&nbsp; My OS is Win XP SP3I was doing some drive testing and ran HDtune&nbsp; (free version, not pro <a href="http://www.hdtune.com/download.html" target="_blank">HD Tune website</a> ) to look at transfer rate. I discovered that my max and average disk transfer rate was 7.8 MB/sec and the CPU load was 48%!&nbsp;&nbsp; Something is defiantly wrong.&nbsp; A little searching and I found this:<a href="http://www.computing.net/answers/windows-xp/very-slow-sata-connection/170603.html" target="_blank">Very slow SATA connection</a>Link to MS KB answer<a href="http://support.microsoft.com/kb/817472" target="_blank">IDE ATA and ATAPI disks use PIO mode after multiple time-out or CRC errors occur</a>Sure enough the “active” transfer mode was PIO, easy fix.&nbsp;&nbsp; Honestly not sure when this happened, or how it happened.&nbsp; I had used Hdtune to do some disk benchmarking just after the new drive install and I know the x-fer rate was great then.&nbsp; I have imaged the drive and restored it since, so who knows. I am amazed the system worked at all at that rate and will watch for any degradation in performance and keep an eye on the transfer mode.</blockquote>

[QUOTE="winterescape, post: 574228, member: 90370"] Skips or stutter in recorded TV, slow SATA transfer rate This post is a solution to a difficult to find (for me) issue I had, hopefully someone else with the same problem will stumble on this post. The symptom: Recorded TV shows, US over the air ATSC HDTV, would occasionally skip or stutter. I recently upgraded my HDD to a WD Black 750GB. My OS is Win XP SP3 I was doing some drive testing and ran HDtune (free version, not pro [url=http://www.hdtune.com/download.html]HD Tune website[/url] ) to look at transfer rate. I discovered that my max and average disk transfer rate was 7.8 MB/sec and the CPU load was 48%! Something is defiantly wrong. A little searching and I found this: [url=http://www.computing.net/answers/windows-xp/very-slow-sata-connection/170603.html]Very slow SATA connection[/url] Link to MS KB answer [url=http://support.microsoft.com/kb/817472]IDE ATA and ATAPI disks use PIO mode after multiple time-out or CRC errors occur[/url] Sure enough the “active” transfer mode was PIO, easy fix. Honestly not sure when this happened, or how it happened. I had used Hdtune to do some disk benchmarking just after the new drive install and I know the x-fer rate was great then. I have imaged the drive and restored it since, so who knows. I am amazed the system worked at all at that rate and will watch for any degradation in performance and keep an eye on the transfer mode. [/QUOTE]

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