What Factors Affect Good ugly quality DVD Video
Does the squence setting take effect? Or other.
Preferably, the best squeeze setting is Full HD at least HD 720. then if later Video rendered to DVD format, not too severe than the same DVD format.
Before going any further, the first thing we should be clear is what are Premiere Pro CC 2017 supported editing formats and the media compatibility of DVD with Premiere Pro CC 2017.
From Premiere Pro CC supported file formats page, we get the information that Premiere Pro CC 2017 has native support for the following video and audio formats:
3GP, 3G2 (.3gp), Apple Prores, ASF, AVC-Infra, AVI (.avi), DNxHD, DNxHR, DV, H.264 AVC, HEVC (H.265), M1V, M2T, M2TS, M2V, M4V, MOV, MP4, MPEG, MPE, MPG, MTS, MXF, Native MJPEGs, VOB,
AAC, AC3, AIFF, AIF, M4A, MP3,OMF,WAV, WMV
From above lists, we can see that Premiere Pro CC 2017 has native input support for VOB container format in DVD media.
Therefore, if your DVD disc is home-made ones without encryption, you can then directly move the disc to your hard drive and Premiere Pro CC 2017 can take the VOB files right off the disc without any transcoding and quality loss.
However, if the DVD disc you try to edit with Premiere Pro CC 2017 is commercial DVD disc with copy protection and region code, then you will need a specific program to bypass that protection.Here is a guide: Free Edit DVD in Premiere Pro CC 2017
FAQ:How do I import VOB files / edit a DVD?
Convert DVD to Premiere Pro (CC, CS6, CS5, CS4) Editable Video.