Just the gist of it, you can probably find a similar one posted somewhere:
Dear Comcast Subscriber
Comcast recieved notification of claimed infringement made under DCMA. This notification, made by a copyright owner or its authorized agent, reports an alleged infringement. In accordance to DCMA and our policy, we request that you immediately remove the allegedly infringing works or we will be forced to remove or block access to the works.
If you believe that this is false, please send us a written notification and we will proceed according to DCMA blah blah blah.
For more information blah blah blah.
Sincerly
Comcast Network Abuse and Observance Team
Copyrighted works identified in the notification
File name
Size
IP
Timestamp
etc.