Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to burn dual layer dvds using nero startsmart [title] Insert the dual-layer dvd into your drive. [step] In order to burn a dual-layer project, you must be using a dual-layer dvd, and your drive must support burning dual-layers. If you try to burn a dual-layer project to a single-layer disc, you will encounter errors.

Ending1: Before syncing your files, make sure they fit. [substeps] If your own drive meets standard requirements, there is no need to fire (multi-layer) 2-layer files so long as they are compatible with nero. Ending2: The only way to check for errors are if you are working with a prior drive or dvd disc : [substeps] The optical drive area under the disc is called the optical drive area. The optical drive area is called the optical drive area. Ending3: [title] Open nero startsmart/nero express. [step] This program will come installed with certain dvd burners, or can be purchased directly from nero. Ending4: This could happen if your drive does not support burning and burning with dual layers cd, and can be modified by navigating to the direction indicated on your welcome screen. [title] Customize the dvd that you want to burn using the link below.

Answer format: ending1/ending2/ending3/ending4