Trying to burn DVD, but it gets to 50 % it just stops

well i just got my lite-on dvd burner and im trying to burn a dvd ( S.W.A.T.) and its not working i have clone dvd anydvd decss dd shrink and alcohol and nothing is working ( i haven’t p[urchased any yet… just trying to see what works and what to buy… everytime i try it starts to read or process the dvd andafter waiting about an hour and a half or or or when it gets to 50 % it just stops… but im confused isn’t anydvd suppsoed to make it like the dvd has no encryption?

No error message whatsoever ? It just stops ?

Dirty/Scratched disk? Laser head?

Try another DVD-ROM