<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1413246067860_11519" dir="ltr">I've finally gotten my Ceton InfiniTV 4 PCie working on Mythbuntu. <YAY!> Anyway, I've set up a bunch of shows to record, all of them HD. Many of those shows record just fine. However, I'm a racing fan, and every race I've recorded so far has been of really poor quality except one.<br></div><div id="yui_3_16_0_1_1413246067860_11574" dir="ltr"><br></div><div id="yui_3_16_0_1_1413246067860_11520" dir="ltr">All of those recordings show up with a yellow border. I think that means the recording is damaged from what I've read. When I watch the recording, every time a scene changes, the screen gets very blocky (macroblocking?) and the audio cuts out, then it will return to a beautiful recording for a moment until the camera changes, then it repeats. It gets worse and worse as the show goes. I haven't let it run, but I have noticed that the file size is very small. For example, a normal TV show recorded for 1 hour at 5.xx Gb. A formula 1 race (3 hours) recorded at 0.5 Gb.</div><div id="yui_3_16_0_1_1413246067860_11521" dir="ltr"><br></div><div id="yui_3_16_0_1_1413246067860_11522" dir="ltr">I've also had some problems with BBC America. Some recordings are great. Some show up as yellow like the races. Of those, some just hang the frontend. Others come back with a message saying the file is missing.<br></div><div id="yui_3_16_0_1_1413246067860_11587" dir="ltr"><br></div><div id="yui_3_16_0_1_1413246067860_11523" dir="ltr">The one race recording I recorded without problem was a NASCAR race that was not scheduled to record, but I turned it on in Live TV. It looked great, so I went back to the program guide and tried recording it. It recorded fine. As I said, these shows are all HD.</div><div id="yui_3_16_0_1_1413246067860_11563" dir="ltr"><br></div><div id="yui_3_16_0_1_1413246067860_11524" dir="ltr"> Initially, I was unable to record anything when I set up the box. I was getting buffer errors. I found that my network was running at 10Mb/s. I fixed that so it's running at 1000MB/s, but I still have some Cat5 (not 5e) cable in the walls.</div><div id="yui_3_16_0_1_1413246067860_11525" dir="ltr"><br></div><div id="yui_3_16_0_1_1413246067860_11586" dir="ltr">I looked at the channels that I've recorded on and here's what I got for signal strength and S/N ratio:</div><div id="yui_3_16_0_1_1413246067860_11526" dir="ltr">TNTHD - always good: Signal Strength - 3.8 dBmV, Signal to Noise Ratio - 32.6 dB</div><div id="yui_3_16_0_1_1413246067860_11527" dir="ltr">WMAQHD - always good: Signal Strength - 4.1 dBmV, Signal to Noise Ratio - 33.4 dB</div><div id="yui_3_16_0_1_1413246067860_11528" dir="ltr">WBBMHD - always good: Signal Strength - 5.9 dBmV, Signal to Noise Ratio - 34.6 dB<br></div><div id="yui_3_16_0_1_1413246067860_11529" dir="ltr">BBCAHD - sometimes good recordings, other times not: Signal Strength: 2.3 dBmV, Signal to Noise Ratio: 34.1 dB</div><div id="yui_3_16_0_1_1413246067860_11530" dir="ltr">NBCS1HD - always bad: Signal Strength - 3.9 dBmV, Signal to Noise Ratio - 34.8 dB</div><div id="yui_3_16_0_1_1413246067860_11531" dir="ltr">FS1HD - always bad: Signal Strength - 3.5 dBmV, Signal to Noise Ratio - 32.1 dB</div><div id="yui_3_16_0_1_1413246067860_11532" dir="ltr"><br></div><div id="yui_3_16_0_1_1413246067860_11533" dir="ltr">Since it seems like a channel thing (higher channels have problems, lower channels don't), I figured I'd look at improving my signal strength. I've had a Motorola 1-2 amplified splitter (http://www.amazon.com/Motorola-Signal-Booster-BDA-S2-Amplifier/dp/B0017I1PVC/ref=pd_sim_e_5?ie=UTF8&refRID=0REJCWJTGHQ0WF945342) on the line coming into my house for a while now. It helped a lot as before I couldn't tune. I've got one of those lines going to my old STB, and the other going to a 1-2 splitter. From the splitter, one line goes to the cable modem, and the other line goes to my backend's cable tuner card. I've always read that splitters degrade signal, so I tried disconnecting the STB and connecting one long line directly from the Motorola amplifier to my cable card. On all channels, SS goes up by 2 - 3 and S/N goes up a bit too. I've read that a perfect signal strength would be 0 dBmV, but I'm wondering if that's wrong.</div><div id="yui_3_16_0_1_1413246067860_11588" dir="ltr"><br></div><div id="yui_3_16_0_1_1413246067860_11590" dir="ltr">Can anybody offer any suggestions on what I should look at to be able to record these shows?</div><div id="yui_3_16_0_1_1413246067860_11589" dir="ltr"><br></div><div id="yui_3_16_0_1_1413246067860_11591" dir="ltr">Mike<br></div><div id="yui_3_16_0_1_1413246067860_11534" dir="ltr"><br></div><div></div></div></body></html>