Hi, My old, MythTV, master backend finally gave up the ghost this past weekend. The power supply or motherboard got bad enough there wa no stability. No big deal. I was planning to replace that system soon and had all of the parts ready anyway. I moved the disks and tuner cards (2 Kworld ATSC 115s, 1 Hauppauge PVR 250 and 1 Hauppauge PVR 350) to the new system (AMD X2 3600 CPU and Biostar TForce 550 motherboard). Things went fairly smoothly and I seemed to have full stability again for the first time in several weeks. Then, I started noticing frequent corruption in some of my claar QAM recordings from the ATSC 115 cards. When the corruption is present, it occurs every few seconds -- a splotch of garbage in the picture here, a stutter and a skipped frame there. Sure enough, MythTV and mplayer both report CRC, damage, splice and other errors when playing the streams. I finally determined the stream corruption happens if and only if one of the PVR x50 cards is being used at the same time. If only the ATSC 115s are used, there is no corruption. As soon as either of the PVr X50 is used with an ATSC 115, there is corruption. I tested with the stock drivers from the 2.6.27.17 kernel and from current Hg. The corruption happens with both sets of drivers. FWIW, I haven't noticed any corruption with the analog recordings from the PVR x50s. Does anyone know what might be going on? These very same tuner cards worked fine in the old system (Intel P4 3.0GHz CPU and Abit IC7 motherboard) for close to two years. David -- David Engel david@xxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html