I might even accept magnetic storage media as being so reliable it was kept around for security purposes, but it would have been nice if it wasn't identical to VHS in every way. Could have at least chamfered some edges away. And yes, Kara driving around in a Humvee bothered me as well, though not as much (will get to that later). Like I said I can see them using this sort of technology level, but things that look identical break the immersion for me. A magnetic tape that looks differently but is still obviously a magnetic tape or a car that looks almost like one of "ours" but can't exactly place it would still work withing the confines of "all this has happened before and will happen again". There is such a thing as being too literal.
And simply saying that a society can move ahead faster in some areas of technology and slower in others is true but only works to some degree to explain this away. Science areas aren't completely isolated from each other; a breakthrough in some area will likely have some effect on another. History has also shown that there is no gradual and constant advance of science - it will go ahead slower in some areas and faster in others until a big breakthrough is made, after which things skyrocket in all areas and tend to make up for the differences. So you can't exactly go be all advanced in medicine and forget about computers because things tend to be related, and at some point one needs the other to move forward.
That said, seems to me we're centuries away from any sort of proper sublight space travel. Yes we can launch stuff in orbit and send probes further but we can't exactly hop on a passenger liner and go swing around saturn, can we? Not even mentioning FTL because right now we're not even sure if we'll ever be able to do anything like that.
Basically what I'm saying is that a society that has all that and uses VHS seems disproportionate to me. Yes, if you really want to like the show you'll find a way to make yourself think it's all perfectly believable - there's nothing stronger in this world then a fan made reality bubble - but I'm still saying they should probably look out for these things more. At least redesign the magnetic storage media and get rid of the Jaguar statuette from the hood so things aren't 100% identical. This bothered me less in BSG because it wasn't in the spotlight as much - you'd shortly see an existing car, truck or weapon but then you'd be back to battlestars, Vipers, FTL and such. But in Caprica they're jamming a lot of that stuff in our faces and we've only seen 3 episodes so far. I wouldn't even say anything it was a low budget thing, but otherwise Caprica looks pretty damn great, making these cheapo excursions to 1980s seem all the less believable to me.