Recording issues

[235301]

I have seen a couple of odd issues with recording, wondering if there any thoughts on these(note I have two analog tuners, an HVR-1600 and PVR-150):

-I started a manual record while watching a show. I then decided I would record the show directly after the current one by setting the record in the program guide. The second show did record however it didn't start recording until ~10 mins after the show started(I started the manual record on the previous show with ~30 mins left in it). And the manual recorded show did not have the 10 mins of missing video from the second record. It just wasn't there.
-I was running low on HD space(~1GB left) and I had the last 5 mins of a show cut off. Is there some min amt of hd space I have to have left in order for the recording to work properly?

[sub]

-I started a manual record while watching a show. I then decided I would record the show directly after the current one by setting the record in the program guide. The second show did record however it didn't start recording until ~10 mins after the show started(I started the manual record on the previous show with ~30 mins left in it). And the manual recorded show did not have the 10 mins of missing video from the second record. It just wasn't there.

Nothing springs to mind, but post the logs and I'll see if I can see anything obvious.

-I was running low on HD space(~1GB left) and I had the last 5 mins of a show cut off. Is there some min amt of hd space I have to have left in order for the recording to work properly?

No, there no minimum, but when it runs out of disk, its all over...