Many policies won't require all that specific information. The one i have for example covers personal effects up to a certain dollar amount. In the event of loss, I would be covered for the value of the collection. The list I keep is primarily for me to determine what I have. However, I think the more detailed list you have, the better, in case of an disagreement between you and the insurance company.
Keep blu-ray and DVD around for a long time! Say no to streaming!