How to record meeting as WORM state (write once, read many)?

Record meeting as WORM state (write once, read many): After enabling this setting, cloud recordings cannot be edited or deleted in the web portal. If a retention time range has been configured, recordings can’t be edited or deleted until the retention period expires.
Notes:
This setting needs to be enabled by Zoom. After contacting support, please allow up to 3 business days for the feature to be enabled.
If you set a recording to auto delete, the time to auto delete will only apply after the retention period expires.

I have read above lines in zoom official docs. Can some one explain about WORM state !
what is retention period?
Our requirment is to store recordings forever. So, pls give suggestions accordingly.
Thanks in Advance.

Hi @vijay.sundharapandiy,

For more details on this settings, please reach out to our Technical Support team here. They’ll be best suited to clarify for you.

Best,
Will