Yes HDMI. It has been reported over and over that HDMI may cause lockups or other bugs. However, none of these have been confirmed except to say that some people have moved to component connections and had fewer problems. HDMI itself can be buggy, so eliminating that as a possible issue may point to the real cause.
With that said, the post was sarcastic and not very helpful. Can you give any more information on the recording? Was it a series link, single record, HD recording, etc? This may help in the diagnosis or future upgrades.
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