In first, sorry for my english

Advice on purchase of SDI decoder

I am looking for a SDI decoder

The maximum would be if it were a combo (satellite / DTT), if it was HD and if he had the opportunity to mount a hard disk

I was advised this item

http://www.aventtech.com/en/prodlist.php?cat=41
http://www.aventtech.com/en/showprod.php?id=45

There is also the model with hard disk, but not is nor HD nor combo

How about this box ... and what other SDI decoder should I buy?

...

in HD, I just found something professional

SFX Pro Video
http://www.datacast.com/pg_DataSheetResults.php

This combo is also

Virenza
http://www.dveo.com/broadcast-systems/DVB-S-DVB-S2-QPSK-IRD-Receiver.html

but being professional, which I imagine are quite expensive