EMERGENCY! UDF1 DVDS not readable on other PCS?!?

Hi, i am using Nero Burning to create UDF data DVDs but those DVDs show up as empty on other PCs? What to do? I am trying to get Acronis Backupfiles to another PC and the .tibs are all 4.5gig. ISO can’t handle this according to Nero. What to do? Do I need a UDF reader on the other PC? All PCs have the same version of Nero on them, none have InCD installed. Thanks.