John's links give you advice on creating a looping DVD with PGCEdit. The following link shows how to do it, screen by screen, with IFOEdit - http://www.techarp.com/showarticle.aspx?artno=421.
Note that all these solutions require that you have created a Video-DVD using Share to Disc and then selecting the save to Folder option.
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If this post or another user's post resolves the original issue, please mark the posts as correct and/or helpful accordingly. This helps other users with similar trouble get answers to their questions quicker. Thanks.
In one of the links that John offered in reply to your question, you will find my comments on this matter
The DVD player Repeat is a classical approach to looping DVD-VIDEO on DVD disc at playback.
However, please take a look at my blog how to to achieve this goal using Premiere Elements in conjunction with free programs such as IfoEdit and PgcEdit. It is easy to do.
Besides the player Repeat function and using Premiere Elements in conjunction with PcgEdit or IfoEdit program for looping DVD-VIDEO on DVD disc, you might consider repeating your Premiere Elements Timeline content as many times as you need looping. That can be impractical if you have a large slideshow and space is a limitation.
Please review and consider and then let us know if any of the above worked for you.