I bought a sample CD / some samples on a webpage. Can I distribute my track with you?

You can distribute music that includes such samples, as long as you have an agreement allowing you the commercial usage of the samples.

We will be asked for the authorization contract if there is any doubt, issue, or copyright claims regarding the samples.

However, we do strongly recommend to NOT monetise such tracks via YouTube Content ID because most likely you are not the only one using this sample and/or we might receive claims from the original owner of this track.

To the authors, we recommend you read the terms and conditions of the platform from which they source the sample before doing so.

For more info, please have a look at What contract/license do I need when I buy a beat, sample, or instrumental composition online or from a third person?