Using Console in Utilities seems to be a very good idea !
--> Indeed, here is the report of Console when the standby or sleep mode is ok (when the optical player is not seen by the MBP) :
05/01/13 14:22:54 kernel System SafeSleep
05/01/13 14:28:33 kernel hibernate_page_list_setall start
05/01/13 14:28:33 kernel hibernate_page_list_setall time: 132 ms
05/01/13 14:28:33 kernel pages 315437, wire 95791, act 81155, inact 11, spec 1, zf 0, throt 11280, could discard act 40525 inact 18786 purgeable 1947 spec 65941
05/01/13 14:28:33 kernel hibernate_page_list_setall found pageCount 188238
05/01/13 14:28:33 kernel IOHibernatePollerOpen, ml_get_interrupts_enabled 0
05/01/13 14:28:33 kernel IOHibernatePollerOpen(0)
05/01/13 14:28:33 kernel writing 188009 pages
05/01/13 14:28:33 kernel image1Size 236132864
05/01/13 14:28:33 kernel all time: 6303 ms, comp time: 1235 ms, deco time: 0 ms,
05/01/13 14:28:33 kernel image 410471936, uncompressed 770084864 (188009), compressed 408944096 (53%), sum1 4880c354, sum2 7eaa3031
05/01/13 14:28:33 kernel hibernate_write_image done(0)
05/01/13 14:28:33 kernel sleep
05/01/13 14:28:33 kernel Wake reason = UHC3
05/01/13 14:28:33 kernel System Wake
05/01/13 14:28:33 kernel vmmon: powerStateDidChange flags=0x82 (state 4)
05/01/13 14:28:33 kernel Previous Sleep Cause: 5
05/01/13 14:28:33 kernel USB (UHCI):Port 2 on bus 0x5d has remote wakeup from some device
05/01/13 14:28:33 kernel AirPort: Link Down on en1
--> And here is the report, after the 1st standby, in the opposite case :
05/01/13 18:27:56 kernel System SafeSleep
05/01/13 18:31:31 kernel hibernate_page_list_setall start
05/01/13 18:31:31 kernel hibernate_page_list_setall time: 112 ms
05/01/13 18:31:31 kernel pages 225052, wire 91709, act 33445, inact 22, spec 1, zf 0, throt 1899, could discard act 38037 inact 7249 purgeable 932 spec 51758
05/01/13 18:31:31 kernel hibernate_page_list_setall found pageCount 127076
05/01/13 18:31:31 kernel IOHibernatePollerOpen, ml_get_interrupts_enabled 0
05/01/13 18:31:31 kernel IOHibernatePollerOpen(0)
05/01/13 18:31:31 kernel writing 126847 pages
05/01/13 18:31:31 kernel image1Size 230360576
05/01/13 18:31:31 kernel all time: 4474 ms, comp time: 813 ms, deco time: 0 ms,
05/01/13 18:31:31 kernel image 289209344, uncompressed 519565312 (126847), compressed 288168496 (55%), sum1 6816f97d, sum2 fa8dceeb
05/01/13 18:31:31 kernel hibernate_write_image done(0)
05/01/13 18:31:31 kernel sleep
05/01/13 18:31:31 kernel Wake reason = UHC3
05/01/13 18:31:31 kernel System Wake
05/01/13 18:31:31 kernel vmmon: powerStateDidChange flags=0x82 (state 4)
05/01/13 18:31:31 kernel Previous Sleep Cause: 5
05/01/13 18:31:31 kernel USB (UHCI):Port 2 on bus 0x5d has remote wakeup from some device
05/01/13 18:31:31 kernel AirPort: Link Down on en1
05/01/13 18:31:31 kernel AirPort: Link Down on en1
05/01/13 18:31:32 kernel IOATAController device blocking bus.
05/01/13 18:31:32 kernel IOATAController device blocking bus.
05/01/13 18:31:32 kernel IOATAController device blocking bus.
05/01/13 18:31:33 kernel IOATAController device blocking bus.
05/01/13 18:31:33 kernel IOATAController device blocking bus.
... etc
and the last message is displayed constantly !!
Should I deduce that this optical player is not fully compatible ?? while the original one must necessarily be ...