I am using an Imac with 12mb memory and i7 processor ( 27" ) I am importing VHS tapes ( old family tape etc, nothing protected ) I am using ADVC300 and vhs deck. Some of the tapes are 120 minutes of footage. After importing, which is fine, it starts to render and will keep going until I manually stop it ( greater than 24 hours ) What is going on? The imported files all play, no problems. Thanks