Thanks for the update. Strange problem now, which I've not been able to find the root of.
The full MSF of the full TOC gotten from the Ultraplex seems to be wrong. The LBA addresses seem to match those the PX-716AL gets though.
First, the LBAs from the disc logs (PX-716AL followed by Ultraplex 40):
Data Track 1, LBA 0- 19784, Length 19785
Data Track 2, LBA 19785- 98116, Length 78332
Audio Track 3, LBA 98117- 99021, Length 905
Audio Track 4, LBA 99022- 99923, Length 902
Audio Track 5, LBA 99924- 100771, Length 848
Audio Track 6, LBA 100772- 101774, Length 1003
Audio Track 7, LBA 101775- 102984, Length 1210
Audio Track 8, LBA 102985- 112584, Length 9600
Audio Track 9, LBA 112585- 122184, Length 9600
Audio Track 10, LBA 122185- 131784, Length 9600
Audio Track 11, LBA 131785- 141384, Length 9600
Audio Track 12, LBA 141385- 150984, Length 9600
Audio Track 13, LBA 150985- 160584, Length 9600
Audio Track 14, LBA 160585- 169734, Length 9150
Audio Track 15, LBA 169735- 172289, Length 2555
Audio Track 16, LBA 172290- 181545, Length 9256
Audio Track 17, LBA 181546- 188175, Length 6630
Audio Track 18, LBA 188176- 194850, Length 6675
Audio Track 19, LBA 194851- 201526, Length 6676
Audio Track 20, LBA 201527- 208202, Length 6676
Audio Track 21, LBA 208203- 233632, Length 25430
Total 233633
============================ TOC on SCSIOP_READ_TOC ===========================
Data Track 1, LBA 0- 19784, Length 19785
Data Track 2, LBA 19785- 98116, Length 78332
Audio Track 3, LBA 98117- 99021, Length 905
Audio Track 4, LBA 99022- 99923, Length 902
Audio Track 5, LBA 99924- 100771, Length 848
Audio Track 6, LBA 100772- 101774, Length 1003
Audio Track 7, LBA 101775- 102984, Length 1210
Audio Track 8, LBA 102985- 112584, Length 9600
Audio Track 9, LBA 112585- 122184, Length 9600
Audio Track 10, LBA 122185- 131784, Length 9600
Audio Track 11, LBA 131785- 141384, Length 9600
Audio Track 12, LBA 141385- 150984, Length 9600
Audio Track 13, LBA 150985- 160584, Length 9600
Audio Track 14, LBA 160585- 169734, Length 9150
Audio Track 15, LBA 169735- 172289, Length 2555
Audio Track 16, LBA 172290- 181545, Length 9256
Audio Track 17, LBA 181546- 188175, Length 6630
Audio Track 18, LBA 188176- 194850, Length 6675
Audio Track 19, LBA 194851- 201526, Length 6676
Audio Track 20, LBA 201527- 208202, Length 6676
Audio Track 21, LBA 208203- 233632, Length 25430
Total 233633
But, when we look at the MSF addresses, the results from the Ultraplex look way off while the ones from the PX-716AL look reasonable. Pasted below (PX-716AL first).
========================= FULL TOC on SCSIOP_READ_TOC =========================
FirstCompleteSession: 1
LastCompleteSession: 1
Session 1, FirstTrack 1, Format: CD-DA or CD-ROM
Session 1, LastTrack 21
Session 1, Leadout, MSF 51:57:08 (LBA[233783, 0x39137])
Session 1, Track 1, MSF 00:02:00 (LBA[000150, 0x00096])
Session 1, Track 2, MSF 04:25:60 (LBA[019935, 0x04ddf])
Session 1, Track 3, MSF 21:50:17 (LBA[098267, 0x17fdb])
Session 1, Track 4, MSF 22:02:22 (LBA[099172, 0x18364])
Session 1, Track 5, MSF 22:14:24 (LBA[100074, 0x186ea])
Session 1, Track 6, MSF 22:25:47 (LBA[100922, 0x18a3a])
Session 1, Track 7, MSF 22:39:00 (LBA[101925, 0x18e25])
Session 1, Track 8, MSF 22:55:10 (LBA[103135, 0x192df])
Session 1, Track 9, MSF 25:03:10 (LBA[112735, 0x1b85f])
Session 1, Track 10, MSF 27:11:10 (LBA[122335, 0x1dddf])
Session 1, Track 11, MSF 29:19:10 (LBA[131935, 0x2035f])
Session 1, Track 12, MSF 31:27:10 (LBA[141535, 0x228df])
Session 1, Track 13, MSF 33:35:10 (LBA[151135, 0x24e5f])
Session 1, Track 14, MSF 35:43:10 (LBA[160735, 0x273df])
Session 1, Track 15, MSF 37:45:10 (LBA[169885, 0x2979d])
Session 1, Track 16, MSF 38:19:15 (LBA[172440, 0x2a198])
Session 1, Track 17, MSF 40:22:46 (LBA[181696, 0x2c5c0])
Session 1, Track 18, MSF 41:51:01 (LBA[188326, 0x2dfa6])
Session 1, Track 19, MSF 43:20:01 (LBA[195001, 0x2f9b9])
Session 1, Track 20, MSF 44:49:02 (LBA[201677, 0x313cd])
Session 1, Track 21, MSF 46:18:03 (LBA[208353, 0x32de1])
========================= FULL TOC on SCSIOP_READ_TOC =========================
FirstCompleteSession: 1
LastCompleteSession: 1
Session 1, FirstTrack 1, Format: CD-DA or CD-ROM
Session 1, LastTrack 33
Session 1, Leadout, MSF 81:87:08 (LBA[371033, 0x5a959])
Session 1, Track 1, MSF 00:02:00 (LBA[000150, 0x00096])
Session 1, Track 2, MSF 04:37:96 (LBA[020871, 0x05187])
Session 1, Track 3, MSF 33:80:23 (LBA[154523, 0x25b9b])
Session 1, Track 4, MSF 34:02:34 (LBA[153184, 0x25660])
Session 1, Track 5, MSF 34:20:36 (LBA[154536, 0x25ba8])
Session 1, Track 6, MSF 34:37:71 (LBA[155846, 0x260c6])
Session 1, Track 7, MSF 34:57:00 (LBA[157275, 0x2665b])
Session 1, Track 8, MSF 34:85:16 (LBA[159391, 0x26e9f])
Session 1, Track 9, MSF 37:03:16 (LBA[166741, 0x28b55])
Session 1, Track 16, MSF 39:17:16 (LBA[176791, 0x2b297])
Session 1, Track 17, MSF 41:25:16 (LBA[186391, 0x2d817])
Session 1, Track 18, MSF 49:39:16 (LBA[223441, 0x368d1])
Session 1, Track 19, MSF 51:53:16 (LBA[233491, 0x39013])
Session 1, Track 20, MSF 53:67:16 (LBA[243541, 0x3b755])
Session 1, Track 21, MSF 55:69:16 (LBA[252691, 0x3db13])
Session 1, Track 22, MSF 56:25:21 (LBA[253896, 0x3dfc8])
Session 1, Track 23, MSF 64:34:70 (LBA[290620, 0x46f3c])
Session 1, Track 24, MSF 65:81:01 (LBA[298576, 0x48e50])
Session 1, Track 25, MSF 67:32:01 (LBA[303901, 0x4a31d])
Session 1, Track 32, MSF 68:73:02 (LBA[311477, 0x4c0b5])
Session 1, Track 33, MSF 70:24:03 (LBA[316803, 0x4d583])
The results from the Ultraplex seem to skip some track numbers, and also thinks the disc is 81+ minutes long.
When I look at the TOC with EAC the Ultraplex matches the PX-716AL.
I'm not sure what's going on here.