Patented Track Zero to hide extra tracks of music, liner notes on CDs and DVDs.

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It has an extra button for changing tracks and fast-forwarding through music CD selections.

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And, of course, the delay might rankle customers whose stuff was sitting on the tracks for an extra day.

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There's also a choice of 10 new background music tracks and 29 extra sound effects, allowing users to exercise their creativity to make their digital content truly stand out.

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The extra 10 miles would call for new tracks, from Sandy in Bedfordshire.

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