| Author |
Message |
Fox
Guest
|
 Posted:
Thu May 19, 2005 12:11 pm Post subject:
Re: All my DVD's going bad ????? |
|
|
Have any of you placed adhesive labels on your discs? This is
guaranteed to turn most discs bad in short order.
On Wed, 18 May 2005 18:56:52 -0500, "flashback" <ndcoder@srt.com>
wrote:
| Quote: |
"Baywolf" <m@nodomain.com> wrote in message
news:ojal71lg72d8tehuk0p0gd3oq27ju7l2bs@4ax.com...
On Tue, 22 Feb 2005 12:40:20 -0500, Brian <unisaw@hotmail.com> wrote:
I've got a real problem here....... I've been noticing that alot of my
recorded DVD's are
pixelating or locking up my set top players. When I record a disc, either
in my Sony 510 recorder
or my NEC 2500 recorder, I do a scan with DVDInfoPro and they usually test
perfect with no bad
blocks. I watch them within a few days of when I record them and have
never had a problem in the
over 400 movies i've recorded. However lately it seems like every
recorded disc over 6 months old
is either pixelating or locking up my set top players. When I scan them
with DVDInfoPro again or
CD/DVD Speed Scan Disc, these discs have numurous errors and unreadable
blocks, no matter what
recorder or dvd-rom i scan them with. The discs vary in brand, I have
Verbatems, TDK's, Princo's,
Fuji (Taiwan), CMC's and Riteks. As I said earlier, When recorded, these
discs scanned and played
perfectly so I doubt it's the 2 recorders. I store them in jewel cases in
my home office. Now I
have a ton of Princo and CMC CD's which I recorded several years ago and
I've scanned random discs
and none have shown any errors. Today, I scanned around 8 random age
recorded DVD's and every one
has unreadable blocks. Now this really sucks BIG time !!!!!! Are all
these discs prone to short
term failure ????? I can't believe I'm the only one noticing this problem
but I haven't seem
mention of it in these newsgroups. Have I wasted hundreds of dollars on
media which won't last
beyond a few months ????? Is anyone else getting these failures ????
Thank you
Brian
I have had the same problem. The disc have never been played but once. Mine
are all in pristine physical condition but do not play anymore.
I am suspicious of laser rot. This caused the old large format laser discs
from the 70s to all go bad. It was determined that this was caused by the
plastic medium "curing" with time. This then causes the binary bits to be
improperly spaced or even damaged. So, here we are again with the same
problem 25 years later. I switched from generic brand dvds to Ritek. I am
hoping for the best. I have always burned by discs at the slowest speeds.
Did not matter.
My discs worked perfectly when burned, but 6 months later are all dead. I
sure wish we had some guru who could tell us what media to buy to prevent
this from happening. Right now, we are all just guessing what might work.
|
|
|
| Back to top |
|
 |
flashback
Guest
|
| Posted:
Thu May 19, 2005 9:06 pm Post subject:
Re: All my DVD's going bad ????? |
|
|
All of my discs had adhesive labels. But, they are on the side opposite from
the emulsion that gets burned,
What would be the mechanism that would corrupt the other side of the disc by
having adhesive on the opposite side? |
|
| Back to top |
|
|
GraB
Guest
|
| Posted:
Thu May 19, 2005 10:31 pm Post subject:
Re: All my DVD's going bad ????? |
|
|
On Thu, 19 May 2005 11:06:36 -0500, "flashback" <ndcoder@srt.com>
wrote:
| Quote: | All of my discs had adhesive labels. But, they are on the side opposite from
the emulsion that gets burned,
What would be the mechanism that would corrupt the other side of the disc by
having adhesive on the opposite side?
The data layer on CDs is just below the top label, so easily affected |
by pens and labels. The data layer of DVDs is between two layers of
polycarbonate so are less affected.
Some dyes are subject to fading so keep them out of sunlight or other
UV light.
Bending of the DVD disc can cause seperation of the layers which
affects the optical properties of the disc so that the laser can't
read the data. Remove from case carefully. |
|
| Back to top |
|
|
Marty
Guest
|
| Posted:
Fri May 20, 2005 12:25 am Post subject:
Re: All my DVD's going bad ????? |
|
|
Somewhere around Thu, 19 May 2005 19:11:49 +1200, while reading
alt.video.dvd.tech, I think I thought I saw this post from Fox
<golem@nowhere.com>:
| Quote: | Have any of you placed adhesive labels on your discs? This is
guaranteed to turn most discs bad in short order.
|
Guaranteed? By who? If my discs with labels do not go bad, who do I see
about replacement? :-)
Seriously, I don't understand how anyone can "guarantee" something like
this, with no tests cited (or done, most likely). This is simply anecdotal
evidence, which is known to be unreliable.
--
Marty - mjf at leftcoast-usa.com
"Those are my principles, and if you don't like them...
well, I have others." - Groucho Marx |
|
| Back to top |
|
|
Bill Vermillion
Guest
|
| Posted:
Fri May 20, 2005 4:40 am Post subject:
Re: All my DVD's going bad ????? |
|
|
In article <118o6v48joul514@corp.supernews.com>, flashback
<ndcoder@srt.com> wrote:
| Quote: | Thank you for the comments. Yes you are right about the laser
discs they were just analog. But I think the same mechanism
wrecked them.
|
They are made differently. While there are two pieces to both, the
LD's were orignally glued together and sometimes it was not even.
3M came up with glue sheets that were placed between the two halves
so there was never a problem with uneven glue spreading or missing
spots with glue where moisture could migrate in from the side.
The only problem with the 3M glue sheets was they left the edges
a bit sticky and many people were concerend about that. But as I
said I've only had a handful of LDs go bad.
I've had ONE DVD go back - a dual sided Das Boot. It got blocky
and then would just not read. The advantage of analog is that you
get a picture that may not be pretty but you get a picture. In
digital when it goes bad you get nothing.
| Quote: | I will only use a name brand disc and hope that this offers some
insurance. Any comment on Ritek. That is what I am using. If
you have older TDK dvd videos that are OK today that is a good
recommendation. Is that correct? Do you have older TDK videos
that are still in good shape??
|
As far as DVD's go I've had good results with TDK, FujiFilm, and
Sony. However they all had the same manufacture ID of RICOHJPN01,
so they all came from the same plant.
The latest TDK's I got were from CMC. The Maxells I got showed
Maxell made then and were made in Japan. Latest ones show "Made in
Taiwan" on the wrapper but I've not had a chance to test them.
I went through about 300 Ritek G04s, +R disks, with only a few
Ifailures. 've had a few more failures with the RItek +RWs, but
since I record on them in the DVR, and the edit on the PC some of
those get used often. I've not used any of them more than 25
times, but I've had some just get a bad spot. But I may have
screwed them up. One that failed had a greasy fingerprint - and
I'm usually much more careful than that. And even when I cleaned
it off the area under gave an error when I did a full-erase
in Nero. When I get a +RW disk that reads slower than usual
I'll do a full format, and then try it again. If it remains slow -
I'll junk it.
The new TDK's from CMC are listed at 8X but I got verify failures
on a couple so dropped back to 4X with no problems. These are
being recorded on a TDK 840G - rated at 8X/4X - and is just a
relabeled Plextor.
I'm getting the impression that finding a brand name that works the
same time after time is hard unless you go with something with a
manufacturers brand - like the Taiyo Yuden - and one name brand I
had recently came from that factory.
My oldest TDK DVDs are just a bit over a year old as that's as long
as I've had my DVR - where I do most of my recording. No problem -
but in this business it's always "No problem so far". Sometimes
problems can take years to show up.
Bill
--
Bill Vermillion - bv @ wjv . com |
|
| Back to top |
|
|
Joel Graffman
Guest
|
| Posted:
Fri May 20, 2005 6:05 pm Post subject:
Re: All my DVD's going bad ????? |
|
|
Disks with labels also run hotter. I had a bunch of disks that wouldn't
read that I retreived by removing the labels and then copying the data.
--
"flashback" <ndcoder@srt.com> wrote in message
news:118ped1cgj47d16@corp.supernews.com...
| Quote: | All of my discs had adhesive labels. But, they are on the side opposite
from the emulsion that gets burned,
What would be the mechanism that would corrupt the other side of the disc
by having adhesive on the opposite side?
|
|
|
| Back to top |
|
|
Stephen Forbes
Guest
|
| Posted:
Fri May 20, 2005 8:53 pm Post subject:
Re: All my DVD's going bad ????? |
|
|
In article <gqpp819snqtb9n7mick8s63m3ac5hi8fra@4ax.com>,
this.address@is.invalid (Marty) wrote:
| Quote: | *From:* Marty <this.address@is.invalid
*Date:* Thu, 19 May 2005 19:25:11 GMT
Somewhere around Thu, 19 May 2005 19:11:49 +1200, while reading
alt.video.dvd.tech, I think I thought I saw this post from Fox
golem@nowhere.com>:
Have any of you placed adhesive labels on your discs? This is
guaranteed to turn most discs bad in short order.
Guaranteed? By who? If my discs with labels do not go bad, who do I
see
about replacement? :-)
Seriously, I don't understand how anyone can "guarantee" something like
this, with no tests cited (or done, most likely). This is simply
anecdotal
evidence, which is known to be unreliable.
|
I have done some experimentation about this and the results and
conclusions follow.
Place a full size label on a disk before writing creates coasters 100% of
the time.
Place a full size label on a disk after writing makes the disk unreadable
in the later stages of playback 75% of the time.
Place a minidisc label on full size disk after writing allows perfect
playback 100% of the time.
Conclusion:
There are a lot more, thinner tracks on a DVD than on a CD so anything
that unbalances a DVD disc is going to affect the DVD playback.
A full size label needs to be perfectly circular, central hole dead centre
and very accurately fitted centrally to minimise such problems. I know of
no source that is this good.
Also, sometimes anecdotal evidence is extremely reliable, you just have to
do some checking first before believing it.
Stephen |
|
| Back to top |
|
|
Marty
Guest
|
| Posted:
Fri May 20, 2005 11:07 pm Post subject:
Re: All my DVD's going bad ????? |
|
|
Somewhere around Fri, 20 May 2005 09:05:06 -0400, while reading
alt.video.dvd.tech, I think I thought I saw this post from "Joel Graffman"
<JRGraff@bellsouth.net>:
| Quote: | Disks with labels also run hotter. I had a bunch of disks that wouldn't
read that I retreived by removing the labels and then copying the data.
If you were able to remove the labels, then maybe your problem was the |
particular labels you used - they must have been much thicker than normal,
and a different type of glue. I've never had labels that could be removed,
even immediately after applying them. And since that side of the disk is
very thin, I'd expect the disk to be ruined after removing one.
--
Marty - mjf at leftcoast-usa.com
"Those are my principles, and if you don't like them...
well, I have others." - Groucho Marx |
|
| Back to top |
|
|
Joel Graffman
Guest
|
| Posted:
Sat May 21, 2005 7:31 pm Post subject:
Re: All my DVD's going bad ????? |
|
|
I expect that label type or thickness does make a difference. This does not
change the facts of the matter. I couldn't copy all data with the labels
installed, removing the labels made it possible in most cases.
BTW, the labels were not easy to remove. Soaking in water overnight makes
it possible, but difficult. If you are careful it does not ruin the disk.
--
"Marty" <this.address@is.invalid> wrote in message
news:2o9s81tj90bian8do1ldhvdb7pglsji8hn@4ax.com...
| Quote: | Somewhere around Fri, 20 May 2005 09:05:06 -0400, while reading
alt.video.dvd.tech, I think I thought I saw this post from "Joel Graffman"
JRGraff@bellsouth.net>:
If you were able to remove the labels, then maybe your problem was the
particular labels you used - they must have been much thicker than normal,
and a different type of glue. I've never had labels that could be
removed,
even immediately after applying them. And since that side of the disk is
very thin, I'd expect the disk to be ruined after removing one.
-- |
|
|
| Back to top |
|
|
flashback
Guest
|
| Posted:
Sun May 22, 2005 12:24 am Post subject:
Re: All my DVD's going bad ????? |
|
|
OK, Those of you who like me have many many wrecked discs take heart. I did
not want to believe this would help but I decided to try removing the labels
anyway. I had one video that would not copy. The last tracks were corrupt. I
carefully peeled the label and Voila! It would copy.
I then peeled a video that was totally corrupt. It would play fine.
I found my wife soaking my dvds in paint thinner and howled that this would
undoubtably destroy the plastic. It did not. It makes the labels peel off
very easily. You then must wash carefully with dish soap and lukewarm water
to remove any residual adhesive. Then wipe with a soft towel.
I have yet to find a disc that cannot be repaired this way.
It really made no sense to me that a lable could really wreck a disc. So
much for making sense to me. All my disc are now simply labeled with a fine
felt pen made for disc labeling.
It also made no sense that these same discs played perfectly right after
they were burned and labled. Aging with the labels, wrecks em. I know I
know, all you physics graduates out there scoffing at this. Just try it. We
don't know everything. |
|
| Back to top |
|
|
Marty
Guest
|
| Posted:
Thu May 26, 2005 4:41 am Post subject:
Re: All my DVD's going bad ????? |
|
|
Somewhere around Sat, 21 May 2005 10:31:14 -0400, while reading
alt.video.dvd.tech, I think I thought I saw this post from "Joel Graffman"
<JRGraff@bellsouth.net>:
| Quote: | I expect that label type or thickness does make a difference. This does not
change the facts of the matter. I couldn't copy all data with the labels
installed, removing the labels made it possible in most cases.
BTW, the labels were not easy to remove. Soaking in water overnight makes
it possible, but difficult. If you are careful it does not ruin the disk.
|
Well, since making labels is a pain, perhaps I'll refrain, just in case. :)
I have a couple of labeled DVDs, so I'll check them in the future. Maybe I
should back them up.
--
Marty - mjf at leftcoast-usa.com
"Those are my principles, and if you don't like them...
well, I have others." - Groucho Marx |
|
| Back to top |
|
|
|
|
|
|
Profile
Log in to check your private messages
Log in