Most DVD drives won't play my Burns

How come I can play svcd on a crummy portland DVD player but it won’t work on a samsung or a Pioneer? Most of the dvd drives say incompatible disc. The drives all say they can play the media?
Thx Sto

Hey stocon…
What are you using to make the burns? What media are you using? What are the specs for reading on the Samsung or Pioneer for playing. There’s a lot of whats here that need answering before anyone can begin to help you. Oh and one more from me. What kind of system are you using . I see your new to the forum so welcome. You may want to read the forum Faqs to find answers before making posts. Lots of info there. But if you post, please give us as much info that you have available to help us help you.