If there are duplicates across different formats, we won't know this until the items are processed. To process the items we charge $12.99 per tape. This gets the footage digitized and put online. What we would suggest for your situation is to have the 8mm converted first, then compare them to the VHS tapes that you have (if you have a VCR to view them with).
They usually notify you before they do anything with your 8mm tapes.
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