For dynamically created on-demand products, if content exceeds the disc size limit, we CANNOT automatically split the content across multiple discs. You can however control this and split the files across multiple discs (as multiple line items in an order) ahead of time and submit a multi-disc order.
DVD-5: Maximum allowed 4.35 GB
CD: Maximum allowed 650 MB .
If you are using CD, alternatively, you can also use DVD to avoid splitting.