[LAU] Digital Recorders+Rewind+Record?

[Hart Larry]

Hi Patrick:  Thanks for the on-and-off list items.  In reality my open-reel 
tapes are at least $20 each for 6hours of recording on 3&3quarters.  From what 
I understand those SD cards may be $18 and I would get alot of hours.
In many cases I want to record live programming--and-edit out adds and  begin 
recording again.
Thanks in advance
Hart