My company, Post Haste Sound, was tasked by MGM to help migrate their DASH library. We found that many many elements were exceptionally problematic despite their relatively young age.
We experimented with many different ways to improve playback and found low temperature baking to be the most effective method to improve playback, and ultimately had a playback success rate on the project of over 97%.
Using these techniques we are now beginning other similar DASH migrations for other clients, as people continue to discover that their DASH assets aren't aging well.
On Feb 2, 2012, at 11:34 PM, "Corey Bailey" <[log in to unmask]> wrote:
> Hi All,
> I thought the members of this list might find this interesting:
> Recently, some 1/2-inch Sony DASH (3324) format tapes were shipped from
> the UK to the Warner Bros. Sound Transfer Dept in Burbank, CA. The tapes
> would not play and exhibited Sticky-Shed Syndrome.
> I was asked if I thought it would be safe to bake the tapes. My response
> was that it could be risky and if we were to attempt it, the tapes should
> be baked at a much lower temperature for 24 hours or so. It was decided to
> try my suggestion since there was nothing to loose at this point.
> The details:
> 3 reels of Quantegy 1/2-inch 467 Digital audio tape, originally recorded
> in August of 1999.
> 2 reels of Quantegy 1/2-inch 467 Digital audio tape, originally recorded
> in May of 2004.
> The tapes were baked for 16 hours at 118 degrees F. and then left in the
> oven for 6 additional hours as the oven cooled. The decision was made to
> end the baking at 16 hours because the Transfer Dept. Supervisor wanted to
> test the results to see if there was any improvement that might warrant
> further baking. The first tape tested played just fine so each tape was
> tried in succession with the same positive results.
> Corey Bailey Audio Engineering