Diode's life expectancy

JapanMan2 · Nov 1, 2008

Ok, so for a laser normally the life time is 5000 hours? roughly.

Then how come my DVD player has lasted years? i don't get it, it also has a diode right? so wouldn't that last for around 5000 hours also?

can someone fill me in on this? ^_^

maxkillz · Nov 1, 2008

for one it's not being pushed very hard,and for two how many dvd's/CD's have you burned and how long were the burn times? I wrote about 3k DVD's and mine died 2 years ago :'( I miss my 16x dvd burner...kinda ;D the 22x is a bit faster but not much and it was free

JapanMan2 · Nov 1, 2008

definitely not as much as you've burned ^^

btw how long do you think my PS3 diode would last for?

I hope - a long time as i spent £400 for it :\

maxkillz · Nov 1, 2008

JapanMan2 said:
definitely not as much as you've burned ^^

btw how long do you think my PS3 diode would last for?

I hope - a long time as i spent £400 for it :\

probably as long as your ps3

should last a long long time my PS1 still works ;D

hydrogenman15 · Nov 3, 2008

JapanMan2 said:
definitely not as much as you've burned ^^

btw how long do you think my PS3 diode would last for?

I hope - a long time as i spent £400 for it :\

You spent £400 on a ps3 diode.

I hate to be the one to tell you this but you got ripped off.

A ps3 diode will usually only put out like 10mW's and 20mW's.

The ps3 diodes are long dead because there REALLY weak compared to a HD DVD diode. You could have gotten >20 >100mW HD DVD diodes that would last thousands of hours at 100ma's.

Who sold this to you?

--hydro15

maxkillz · Nov 3, 2008

hydrogenman15 said:
[quote author=JapanMan2 link=1225582026/0#2 date=1225582415]definitely not as much as you've burned ^^

btw how long do you think my PS3 diode would last for?

I hope - a long time as i spent £400 for it :\

You spent £400 on a ps3 diode.

I hate to be the one to tell you this but you got ripped off.

A ps3 diode will usually only put out like 10mW's and 20mW's.

The ps3 diodes are long dead because there REALLY weak compared to a HD DVD diode. You could have gotten >20 >100mW HD DVD diodes that would last thousands of hours at 100ma's. [/quote]
I think he's talking about his PS3

no one would pay that much for a PS3 diode right?...right??

hydrogenman15 · Nov 3, 2008

maxkillz said:
[quote author=hydrogenman15 link=1225582026/0#4 date=1225711773][quote author=JapanMan2 link=1225582026/0#2 date=1225582415]definitely not as much as you've burned ^^

btw how long do you think my PS3 diode would last for?

I hope - a long time as i spent £400 for it :\

You spent £400 on a ps3 diode.

I hate to be the one to tell you this but you got ripped off.

A ps3 diode will usually only put out like 10mW's and 20mW's.

The ps3 diodes are long dead because there REALLY weak compared to a HD DVD diode. You could have gotten >20 >100mW HD DVD diodes that would last thousands of hours at 100ma's. [/quote]
I think he's talking about his PS3

no one would pay that much for a PS3 diode right?...right??[/quote]

If only he had come here before he decide to destroy a ps3 or got ripped off.

--hydro15

maxkillz · Nov 3, 2008

I don't think he killed his ps3

just wondering how long it would last

hydrogenman15 · Nov 3, 2008

maxkillz said:
I don't think he killed his ps3 just wondering how long it would last

Oh...............My bad.

--hydro15

Cyparagon · Nov 3, 2008

I read that as "I spent £400 on PS3 diode" the first time and just about crapped myself.

3000 DVDs... 2 hours/16x times 3000... that's only 375 hours :-/

Were they for commerce or are you just an Uber-pirate?

maxkillz · Nov 3, 2008

Cyparagon said:
I read that as "I spent £400 on PS3 diode" the first time and just about crapped myself.

3000 DVDs... 2 hours/16x times 3000... that's only 375 hours :-/

Were they for commerce or are you just an Uber-pirate?

a bit of both

it was a non stop process so i think that was it

plus it took about 2 hours to burn the dvd so it was more like 7000 hours non stop

Cyparagon · Nov 4, 2008

2hours is 1x, not 16x

maxkillz · Nov 4, 2008

Cyparagon said:
2hours is 1x, not 16x

lol you sure? I had a 1x CD burner and it would take up to 8 hours just for a CD, trust me when I say it took roughly 2 hours per DVD. I think you are thinking about burning a 2 hour movie, I am burning DATA DVD's not movie DVD's, they take way longer. a movie dvd takes about 20 minutes DATA takes longer

Cyparagon · Nov 5, 2008

1x speed for CDs is 150KBps. CDs contain 800MB of data. There are 28800 seconds in eight hours. 800,000KB divided by 28800 seconds is ~28KBps. To burn a full CD in eight hours, the recording speed must be limited to one-fifth X

1x speed for DVDs is 1.35MBps. A DVD contains 4.7GB of data. there are 7200 seconds in two hours. 4,700,000KB divided by 7200 seconds is 652KBps. You were burning at less than one-half X. Burning a DVD at 16x should take no more than 4 minutes. You don't have to take my word for it, Prove it to yourself with Google.

pullbangdead · Nov 5, 2008

Cyparagon said:
1x speed for CDs is 150KBps. CDs contain 800MB of data. There are 28800 seconds in eight hours. 800,000KB divided by 28800 seconds is ~28KBps. To burn a full CD in eight hours, the recording speed must be limited to one-fifth X

1x speed for DVDs is 1.35MBps. A DVD contains 4.7GB of data. there are 7200 seconds in two hours. 4,700,000KB divided by 7200 seconds is 652KBps. You were burning at less than one-half X. Burning a DVD at 16x should take no more than 4 minutes. You don't have to take my word for it, Prove it to yourself with Google.

Unless it's not the drive that is the choke point. It could very well be that the data isn't getting to the drive as fast as the drive is capable of going. Without enough RAM or on-chip processor cache, or with a slow harddrive (especially if it's having to get the data from many different files in many different locations on the drive), it could very well be that the drive was only burning at 1/2X because that's how fast the data was getting to the drive.

Just a thought.

maxkillz · Nov 5, 2008

pullbangdead said:
[quote author=Cyparagon link=1225582026/0#13 date=1225899853]1x speed for CDs is 150KBps. CDs contain 800MB of data. There are 28800 seconds in eight hours. 800,000KB divided by 28800 seconds is ~28KBps. To burn a full CD in eight hours, the recording speed must be limited to one-fifth X

1x speed for DVDs is 1.35MBps. A DVD contains 4.7GB of data. there are 7200 seconds in two hours. 4,700,000KB divided by 7200 seconds is 652KBps. You were burning at less than one-half X. Burning a DVD at 16x should take no more than 4 minutes. You don't have to take my word for it, Prove it to yourself with Google.

Unless it's not the drive that is the choke point. It could very well be that the data isn't getting to the drive as fast as the drive is capable of going. Without enough RAM or on-chip processor cache, or with a slow harddrive (especially if it's having to get the data from many different files in many different locations on the drive), it could very well be that the drive was only burning at 1/2X because that's how fast the data was getting to the drive.

Just a thought.[/quote]
uh 133mhz processor with 8MB of ram ;D at the time it was good

ah the good old days before internet and viruses and having the option of either a floppy or a 10MB hard drive or if you were rich a 20MB hard drive for only $3000 more

Diode's life expectancy

JapanMan2

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maxkillz

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hydrogenman15

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Cyparagon

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