I do still have a 720, 2 in fact plus 700 and some BS750s as well, but I don't now use them. I use network attached tv receivers to record tv.
You seem to be jumping all over the place with iso files, dlna and sd cards.
DLNA is great if you want to use the 720 to play recordings stored on your network or get say a pc on your network to play recordings from your 720.
But it is of no use to get recordings onto the hdd of the 720 which is what I thought you wanted to do.
The 720 can not transcode whilst copying and all sd recordings have to be mpeg2. The result is that it can play mp4, avc encoded recordings but it can not copy them to its hdd as they are not mpeg2. This may well be the reason you have been unable to copy to the 720.
Remember to copy to the 720 the usb format must be correct (not ntfs), the container must be correct (not mp4) and tge codecs must be correct (not avc).
As for sd cards, I did say that for copying to the 720 there is no advantage in using sd cards unless say your 720 usb circuitry is faulty.
You seem to be jumping all over the place with iso files, dlna and sd cards.
DLNA is great if you want to use the 720 to play recordings stored on your network or get say a pc on your network to play recordings from your 720.
But it is of no use to get recordings onto the hdd of the 720 which is what I thought you wanted to do.
The 720 can not transcode whilst copying and all sd recordings have to be mpeg2. The result is that it can play mp4, avc encoded recordings but it can not copy them to its hdd as they are not mpeg2. This may well be the reason you have been unable to copy to the 720.
Remember to copy to the 720 the usb format must be correct (not ntfs), the container must be correct (not mp4) and tge codecs must be correct (not avc).
As for sd cards, I did say that for copying to the 720 there is no advantage in using sd cards unless say your 720 usb circuitry is faulty.