Audio CD's - 700mb VS 840mb Extended Play Music CD's

[rftech]

Re: Audio CD's - 700mb VS 840mb Extended Play Music CD's

I was not able to find the 2 CD music CD set that I wanted but I was able to find a newer CD that contained all of the songs only
on one CD which did not sound right to me, so I went to Wikipedia to investigate further and this is what I found.

A normal CD has 74 minutes of uncompressed stereo digital audio or about 650 mb of data capacity which can be extended to
80 minutes and also can be extended to a maximum of 90 minutes 838,860,800 bytes or even 99 minutes by arranging data more
closely on the same sized disc.

Questions:

Will any CD player including my older CD player in my laptop play these extended CD"s without having any issues.

Also in the long run will these new extended play CD's also be more susceptible to errors or data loss ?

Frank

 

[sander99]

Idea:
If you have a pc with cd drive then you can try to rip the cd with Exact Audio Copy (EAC) and check the checksum. (And if the checksum is correct try how it sounds playing the rip instead of the cd.)

https://www.exactaudiocopy.de/en/index.php/overview/basic-technology/accurate-rip/

(But, by the way, it could be that the cd is technically all right but that a different master was used that is less to your liking. That is assuming you know the music already from the (or a) other version and liked that better.)

 

[rftech]

Idea:
If you have a pc with cd drive then you can try to rip the cd with Exact Audio Copy (EAC) and check the checksum. (And if the checksum is correct try how it sounds playing the rip instead of the cd.)

https://www.exactaudiocopy.de/en/index.php/overview/basic-technology/accurate-rip/

(But, by the way, it could be that the cd is technically all right but that a different master was used that is less to your liking. That is assuming you know the music already from the (or a) other version and liked that better.)

Thanks for the info, I also was concerned about the songs in from the master being down sized so they could all fit on one CD.

 

[sander99]

Thanks for the info, I also was concerned about the songs in from the master being down sized so they could all fit on one CD.

CD uses a fixed amount of data per second of music, so that is not possible (unless you mean shortening the duration of the songs).

 

[2leftears]

Re: Audio CD's - 700mb VS 840mb Extended Play Music CD's

I was not able to find the 2 CD music CD set that I wanted but I was able to find a newer CD that contained all of the songs only
on one CD which did not sound right to me, so I went to Wikipedia to investigate further and this is what I found.

A normal CD has 74 minutes of uncompressed stereo digital audio or about 650 mb of data capacity which can be extended to
80 minutes and also can be extended to a maximum of 90 minutes 838,860,800 bytes or even 99 minutes by arranging data more
closely on the same sized disc.

Questions:

Will any CD player including my older CD player in my laptop play these extended CD"s without having any issues.

Also in the long run will these new extended play CD's also be more susceptible to errors or data loss ?

Frank

Older CD players may struggle with these 90+min CDs. Whilst 74 mins is the red-book CDA standard, in practice it was found that (many) CD players have no issues playing 80 min discs where the track spacing has been reduced a bit to allow for the extra data. You may find that some (likely older) CD players skip more readily on these longer CDs, but with the majority of more modern players you should be fine. Playing these on early generation portable CD players may be problematic, but many of those are now having issues anyway with dust, ageing lubricants, and ageing capacitors. 90+min CDs on older players (incl. your old laptop) may be asking too much, but any modern DVD or BluRay player should be able to read them fine.

Data errors have rarely anything to do with track spacing, so the data error rate should not be worse than that of normal (74min) CDs, nor is there any increased risk of data loss.

 

[rftech]

Older CD players may struggle with these 90+min CDs. Whilst 74 mins is the red-book CDA standard, in practice it was found that (many) CD players have no issues playing 80 min discs where the track spacing has been reduced a bit to allow for the extra data. You may find that some (likely older) CD players skip more readily on these longer CDs, but with the majority of more modern players you should be fine. Playing these on early generation portable CD players may be problematic, but many of those are now having issues anyway with dust, ageing lubricants, and ageing capacitors. 90+min CDs on older players (incl. your old laptop) may be asking too much, but any modern DVD or BluRay player should be able to read them fine.

Data errors have rarely anything to do with track spacing, so the data error rate should not be worse than that of normal (74min) CDs, nor is there any increased risk of data loss.

Thank you for all of the great information. I think that it probably would be better for me to try and find the original CD that I looking for. I noticed that they have started remastering a lot of music CD's which I do not like. I guess I am a purist when it comes to music.

 

[bigshot]

Some remastering is good, some isn’t. It really isn’t possible to generalize. If you chat with knowledgeable record collectors, they can lead you to the best mastering.