First, the problem.
There are two matters that concern me about my new Plextor premium drive.
First is that my Plextor Premium produces an unusually high BLER level during the first ten-twenty minutes as compared to the rest of the CD-R. For example on a TY media burned at 40x with a total number of C1 errors of 2000 first ten minutes contain roughly 400 errors which amounts to one fifth of all errors on one eighth of the CD-R. It is even more apparent when I try to burn TY media with GigaRec 1.2x setting (havenâ€™t tried 1.3 and 1.4 setting yet). In this case the total number of errors on the disc is about 5000, however the first twenty minutes contain about 2500 errors or half of all errors present on the disc. It happens with every media I tried and in my opinion is highly unusual. I tried burning at speeds ranging from 16x to 40x and at 4-8x with GigaRec where applicable, I also tried media from two different spindles of Prodisc and from two different spindles of Taiyo Yuden â€“ itâ€™s all the same, the BLER level at the beginning of the disc is significantly higher than at the end of the disc. Now, I searched cdrinfo, cdrlabs, cdfreaks and ixbt.com forums for Plextools snapshots of different media and it seems that my Premium is the only one that produces high BLER level at the beginning of the disc. Iâ€™m also sure that itâ€™s not a reading glitch because TY media recordered on my previous drive and tested in Premium does not show any increase in BLER level at the beginning of the disc.
The second matter that concerns me is that in less than one week my Nero reported â€œcould not perform EndSessionâ€ error twice! First time it happened when I tried to burn an audio disc on a Prodisc media, ATIP 97m26s66f, with a total compilation length of 63.32.20 and GigaRec 0.8x setting. At first I thought that Prodisc media was not able to endure the strain from GigaRec recording. Five days later, however, on 8th of this month when I tried to record a regular data disc using TY media at 40x I received another error. The total compilation length that time was 81:11.05 and I was not using GigaRec this time. Thatâ€™s what rang an alarm bell for me. In over 500-550 CD-Rs that I recorded with my previous LG 8160B drive (16/10/40) Iâ€™ve never ever received a â€œcould not perform EndSessionâ€ error and in the same time I was able to overburn 82 minutes easily. I tried the overburning test in Nero CD Speed and results came back that Premium can overburn up to 83 minutes and 43 seconds on a TY media which is a lot more than 81 minutes and 11 seconds I attempted to record that time. Not only that, I know that Plextor does not have problems overburning because I already overburned more than 81:11 on several occasions with my Premium drive and everything was perfect. I donâ€™t know why my Plextor choked that time. Interesting fact though both CD-Rs are perfectly readable â€“ I can read information from them.:eek: However even if I can read data from those CD-Rs those â€œcould not perform EndSessionâ€ errors are very unnerving.
All in all I think that â€œcould not perform EndSessionâ€ error is not media dependant since it happened on both Prodisc and on TY media, and it is also not GigaRec dependant because the second time I received that error I was not using GigaRec. Does anyone know why do I keep receiving these errors? Has anybody encountered them too? As of now I have several theories, but I canâ€™t check them:
1. Nero is at fault. After I got Premium I upgraded to Nero 22.214.171.124 since previous Nero version would not recognize it. Iâ€™ve also seen a thread where several users reported that their Nec9300 or LiteOn drives would report â€œcould not perform EndTrackâ€ error. However they were not as lucky as me. In my case both CD-Rs were readable, those users on the other hand were not even able to read TOC.
2. It is possible that the first time error occurred was because Prodisc media was not really good and failed due to an additional strain put on it by GigaRec recording. However I recorded four or five Prodisc blanks using 0.8x and 1.2x settings and all of them were fine.
3. It is also possible that the second time I received EndSession error was because I tried to overburn a disc. However like I said this is not the first time I overburn discs and I already overburned several times up to 82 minutes on my Plextor drive without any problems.
Now to the Plextor support part. Iâ€™ll attach full correspondence but first I want to rant a bit. After I received the second error I wrote to the Plextor Support and they weren't really helpful. I was very polite and did not blame them nor wanted to RMA the drive immediately, I just wanted to know why do I keep receiving that error and to know if my drive is defective. Plextor Support, although polite, not only blamed everything on media (they still do after three or four replies), ignoring counterevidence, but also repeatedly asked the same questions over and over again, ignoring my answers to them. I mean after all the wonderful things Iâ€™ve heard about Plextor support I expected more. First when I wrote to them they simply replied that GigaRec cannot be used to record audio CDs, completely ignoring the fact that I received the second error when I was recording data CD. After I quoted Plextor manual which says that I CAN record audio CDs using GigaRec they replied that it does not make sense to use GigaRec for audioCDs anyway (as if it makes sense to record data CDs using <1x compressionâ€¦ :\ ) and once again ignored my remark about receiving the same error with data CD. Of course there were misunderstnandings on both my and plextor support part but I expected something more useful than blame the media thing.
I edited the text to it would be easier for you to read. You should read from the tom to bottom. Blue parts are mine and red Plextor support.
I bought a plextor premium drive about a month ago and
have been very happy with the purchase until recently.
Today when I tried to record a data disc Nero reported
that it "Could not prform EndSession" and that burn
process failed. I wouldn't be making such a big fuss
about it but it's the second time I receive this
error. First time I received it when I tried to record
an audio disc with GigaRec 0.8x setting shortly after
PlexTools 2.06 were released. That's two identical
error messages in just one week. Another matter that
worries me is an unusually high BLER rate at the
beginning of the disc. On a TY CD-R with a total of
2000 C1 errors per disc there are about 400 C1 errors
during the first ten minutes which amounts to about
one fifth of a total number of erorrs on one eighth of
a CD-R. It's even more noticable on a GigaRec1.2x disc
because first twenty minutes contain roughly half of
all errors present on the disc.
Could you please explain to me what does the "could
not perform EndSession" error means and what causes
it. Is it possible that I got a defective drive which
needs to be replaced?
I'm using Nero 126.96.36.199 under Win2K OS. Premium drive
is connected as a master to primary IDE channel (I
boot from external array), there are no IDE devices
besides Premium on primary channel.
Thanks, sincerely yours Daniil Xxxxxxxxx
Are you in Europe? We don't supply Nero software with our drives in
If so, you'd be best to troubleshoot with Plextor Europe, as they are
familiar with the Nero error messages. We provide Easy CD Creator in
American and prefer to troubleshoot with that.
GigaRec is only for data discs, not audio.
Please try a different brand of media. You may just have a bad disc.
manufacturer can ship bad batches of discs at times.
Plextor America Support Team - Jack
> Are you in Europe? We don't supply Nero software
> with our drives in America.
> If so, you'd be best to troubleshoot with Plextor
> Europe, as they are
> familiar with the Nero error messages. We provide
> Easy CD Creator in
> American and prefer to troubleshoot with that.
No, I live in Northern America, however I prefer Nero
Burning Rom because it suits my needs better.
> GigaRec is only for data discs, not audio.
I was under the impression that you can also record
audio CDs using GigaRec. Thatâ€™s what Plextor manual
says in GigaRec section on page 36: â€œusing a
disc-at-once (DAO) recording application such as
PlexTools Professional CD-ROM Maker or AudioCD Maker,
record data on the CD-R discâ€. Please note that it
specifically says AudioCD Maker which implies that
GigaRec can be used to record audio CDs. Furthermore,
if I may remind you the second time when I received
"could not perform EndSession" error I was trying to
record a data CD on a Taiyo Yuden media.
> Please try a different brand of media. You may just
> have a bad disc. Any
> manufacturer can ship bad batches of discs at times.
I used Prodisc media when it gave me â€œcould not
perform EndSession errorâ€ for the first time, the
second time when I received that error I used Plextor
certified Taiyo Yuden media. I never received that
error with my previous drive even though I recordered
over 500 CD-Rs from different manufacturers (mainly
TY, but also some CMC and Prodisc). However with my
new Premium drive I received that error twice in less
than two weeks and less than 30 CD-Rs written. This
makes me think that this error is not media dependant
and that there might be something wrong with the
Additionally I would like to ask you again what do you
think of Plextor producing significantly higher BLER
level at the beginning of the disc. I checked BLER
lever for discs recorded on my old LG CDRW drive and
they have constant BLER lever throughout whole CD,
however every disc that I burn in my Plextor Premium
drive shows higher BLER level during the first ten
minutes than during the rest of the disc. If you want
I can provide you with some Plextools snapshots
showing BLER level of various discs recorded on
Using GigaRec for audio discs practically guarantees that your discs
wouldn't be useable on most cd players, so there really is no point in
GigaREC is much more stressful on media, so it may not work well on all
media. Without GigaREC, do your discs record ok?
BLER levels are almost entirely due to media. Have you tried different
media, and/or recording at slower speeds?
Plextor America Support Team - Jack
> Using GigaRec for audio discs practically guarantees
> that your discs
> wouldn't be useable on most cd players, so there
> really is no point in doing
I tried recording several audio discs with 0.8 and 1.2
compression and they work perfectly with all CD
players that I have. However that's not the point, I
don't really care if it makes sense to use GigaRec for
audio recording or not, all I care about is that my
new Premium Drive gives me errors during recording.
> GigaREC is much more stressful on media, so it may
> not work well on all
> media. Without GigaREC, do your discs record ok?
Just to clear the matter there were two errors in
total up to date.
First one occured when I tried to record an audio disc
with GigaRec 0.8x option. The CD-R was manufactured by
Prodisc, ATIP 97m26s66f, the total length of
comilation was 63.32.20 which is within limits allowed
by 0.8x compression on an 80 minute disc.
Second error occured when I tried to overburn a
regular data disc. The CD-R in question was
manufactured by Taiyo Yuden, the compilation length
Surprisingly both CD-Rs are readable, but the fact
that my older drive worked absolutely perfectly and
Premium gives me errors is very unnerving.
On the second thought, if you are not exactly
comfortable interpreting Nero Error codes I could
write to Plextor Europe and ask them about it, however
if they conclude that drive is indeed defective would
you be able to issue an RMA?
> BLER levels are almost entirely due to media. Have
> you tried different
> media, and/or recording at slower speeds?
I tried two different spindles of Prodisc media and
two different spindles of TY media, it's all the same,
the amount of BLER in the beginning of the disc is
noticably higher than at the end. I also tried
recording at different speeds ranging from 16x to 40x
and 4x and 8x when using GigaRec - it does not matter.
You'd probably want to contact Nero on their software, since Plextor
doesn't support software not supplied by them. But what is in the Nero
Everything you've mentioned so far sounds like a media problem. If you
problems using GigaREC with the media you are using, then you might use
media without GigaREC... Does that work ok?
> You'd probably want to contact Nero on their
> software, since Plextor Europe
> doesn't support software not supplied by them. But
> what is in the Nero error
I have full log file when the second error occured,
however I have only partial log when the error occured
for the first time. I attached both of them to this
> Everything you've mentioned so far sounds like a
> media problem. If you have
> problems using GigaREC with the media you are using,
> then you might use the
> media without GigaREC... Does that work ok?
No it does not. When this error occured for the second
time I WAS NOT USING GigaRec function. And it was not
the media problem either because I was using Plextor
certified Taiyo Yuden media!
That's a media error. It's possible for even supported media suppliers
have a bad batch. Did you try a different brand and/or batch of media?
And you also should get the Nero version of aspi from their website, as
aspi is the older version.
Plextor America Support Team - Jack
I'll send them another reply, but I'm getting tired if the routine. Seems that I'll have to wait for the third time when I receive the "could not perform EndSession" error.
BTW where I can get the latest Nero ASPI? Tried searching Nero website and came with nothing, also tried searching goole, but the latest it has 188.8.131.52 when I have 184.108.40.206 installed already.