SPTD stands for SCSI Pass Through Direct layer. Basically SPTD is similar to other access layers used by other programs who provide access to storage devices but it has a lot more features that make this interface unique. SPTD v1.45 (32 bit) is public beta version. Duplex Secure team (http://www.duplexsecure.com/) would appreciate your comments and questions regarding use of SPTD v1.45 at Duplex Secure support forum: http://forum.duplexsecure.com/
To address issues reported in 1.43 Duplex Secure provided a hotfix version 1.45.
Once all affected users confirm success we’ll encourage all vendors to replace 1.43 with 1.45.
– Fixed problem with burning programs based on GearASPI layer (e.g. iTunes)
– Fixed long delay problem in some programs, e.g. Ashampoo Burning Studio
– Fixed crash issue with WinAmp
– Fixed issues with some software tools like Exact Audio Copy, Nero and other programs using SPTI-based ASPI layer