very slow compression from hdd to hdd?

[unclebubbies]

Found out this morning there is an updated version that I will download but.....
Last night I tried to compress a 50 gb file down to a 25 gb file on my hdd.
It took over 6 hours to compress. This this normal? Should I expect that kind of wait every time? The write time took around 40 minutes which I'm very impressed with. But the compression time Shsssh! Please advise with any help possible! Here's my log for these sessions:
2011-06-28 06:29:13 ---- ******************** Log session stop 28-Jun 06:29:13.641 PID 4748********************
2011-06-28 05:04:47 Info WRITE SUCCESS: Disc written
2011-06-28 05:04:47 Info Finalization Time 00:00:08 - Total completion time 00:40:19
2011-06-28 05:04:39 Info Write finished in 00:40:11 - Finalization start here. Avg. burn rate 8.05
2011-06-28 04:24:38 Info Lead-in burning time (mS) 9815
2011-06-28 04:24:28 Info Write started 11945088 sectors to write
2011-06-28 04:24:28 Info Writing speed requested x2.0, effective x2.0
2011-06-28 04:24:28 Info Format completed
2011-06-28 04:24:28 Info Available write speed: 2x
2011-06-28 04:24:28 Info Media ID: VERBAT-IM0-00
2011-06-28 04:24:28 Info Media type: BD-RE
2011-06-28 04:24:27 Info Scanned files #775, folder #39 - total size 24457546450 b. (22.78 Gb.)
2011-06-28 04:24:27 Info Inserted media type : BD-RE
2011-06-28 04:24:27 Info Write started
2011-06-28 04:24:24 Info Rewritable disc BD-RE inserted. Ready to erase and write
2011-06-28 04:24:21 Info Compatible media types : DVD-R, DVD-RW Seq., DVD-RW RO, DVDRAM, DVD+R, DVD+RW, CD-R, CD-RW, DL DVD+R, DL DVD-R, Blu Ray-R Seq., Blu Ray-R Rnd., Blu Ray-RE
2011-06-28 04:24:21 Info Drive has Serial ATA physical interface
2011-06-28 04:24:21 Info New Drive selected : 2:1:0 - HL-DT-ST BD-RE WH10LS30 1.00 [E] (Scsi)
2011-06-28 04:22:53 Info Current Drive selected : 0:0:0 - TSSTcorp CDDVDW SH-S222L SB03 [D] (Ide)
2011-06-28 04:22:53 Info Using Advanced SPTI interface
2011-06-28 04:22:53 Info System default language : English (United States)
2011-06-28 04:22:53 Info User default language : English (United States)
2011-06-28 04:22:53 Info DLL Version : 4.0.19.487
2011-06-28 04:22:53 Info DLL : C:\Program Files\DVDFab 8 Qt\vso_hwe.dll
2011-06-28 04:22:53 Info Version : 8, 0, 9, 9
2011-06-28 04:22:53 Info ExeName : C:\Program Files\DVDFab 8 Qt\DVDFab.exe
2011-06-28 04:22:53 Info OS : Microsoft Windows Vista Home Premium (Build 6002: Service Pack 2)
2011-06-28 04:22:53 ---- ******************** Log session start 28-Jun 04:22:53.305 PID 4748********************


2011-06-28 04:21:30 ---- ******************** Log session stop 28-Jun 04:21:30.693 PID 2260********************
2011-06-28 01:45:58 Info Writable disc Hard Disc inserted. Ready to write
2011-06-28 01:45:56 Info WRITE SUCCESS: Disc written
2011-06-28 01:45:56 Info Scanned files #774, folder #39 - total size 24452553426 b. (22.77 Gb.)
2011-06-28 01:45:56 Info Inserted media type : Hard Disc
2011-06-28 01:45:56 Info .fso Image file will contain only the filesystem entries.
2011-06-28 01:45:56 Info Write started
2011-06-28 01:45:54 Info New ISO path selected : C:\Users\ron\Documents\lycans\FullDisc\SPE_BDLIVE\ SPE_BDLIVE.fso
2011-06-27 19:18:16 Info Current Drive selected : 0:0:0 - TSSTcorp CDDVDW SH-S222L SB03 [D] (Ide)
2011-06-27 19:18:16 Info Using Advanced SPTI interface
2011-06-27 19:18:16 Info System default language : English (United States)
2011-06-27 19:18:16 Info User default language : English (United States)
2011-06-27 19:18:16 Info DLL Version : 4.0.19.487
2011-06-27 19:18:16 Info DLL : C:\Program Files\DVDFab 8 Qt\vso_hwe.dll
2011-06-27 19:18:16 Info Version : 8, 0, 9, 9
2011-06-27 19:18:16 Info ExeName : C:\Program Files\DVDFab 8 Qt\DVDFab.exe
2011-06-27 19:18:16 Info OS : Microsoft Windows Vista Home Premium (Build 6002: Service Pack 2)
2011-06-27 19:18:16 ---- ******************** Log session start 27-Jun 19:18:16.321 PID 2260********************

[Complication]

You would need to include your PC specifications in order for someone to estimate. Six hours would be appropriate for a 2-3 year old PC. Blu-ray has about 4x more data than a DVD and is better compressed (takes more time to uncompress and re-compress).