Legal analysis: general wedding video backup for one month. You can go to the wedding and ask if there is a backup of the original tape. If it is a tape, it can usually be retrieved. If it is a card, ask if there is a backup of the original tape or DVD file. You can agree whether to keep the video according to the content of the signed contract. If the wedding company keeps the video out of the contract, it is a breach of contract.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 577 Where a party fails to perform its contractual obligations or fails to perform its contractual obligations in conformity with the contract, it shall be liable for breach of contract such as continuing to perform, taking remedial measures or compensating for losses.

Article 578 Where a party expressly expresses or shows by his own behavior that he will not perform his contractual obligations, the other party may require him to bear the liability for breach of contract before the time limit for performance expires.

Article 579 If one party fails to pay the price, remuneration, rent or interest, or fails to perform other monetary obligations, the other party may demand payment.