Capacity limits

[Clive Barrett]

My B2 has 2Tb of storage. I see that the capacity is given as 10,000 CDs or 150,000 tracks. Are these fixed? Is it 10,000 CDs or 150,000 tracks, whichever is reached first?

[Daniel Taylor]

On the Brennan website on the Miscellaneous page, scroll down to where it says "Why do all models have 10,000 Album Limit?"  You'll find some explanation there.  There is an enormous amount of useful information on the Brennan website.

[Clive Barrett]

Thanks Daniel - I had read that (and lots more - a very useful site as you say) but I was hoping for further clarification. It looks as if I'll hit 150,000 tracks well before I reach 10.000 albums. I am transferring from my computer rather than using the B2's CD.

[Brennan Support]

Update - the experimental software release will display the raw memory stats in the debug window when you press the X key on the remote

Martin

On Wednesday, December 15, 2021 at 10:18:22 AM UTC Brennan Support wrote:

Hello Clive

Martin Brennan here - the capacity is limited by several factors - which may be why the limits seem a bit ambiguous.

1) The disk capacity

2) The album array - currently 15,000 entries

3) The track array - currently 170,000 entries

4) The memory used to hold album names - currently 200k bytes

5) The memory used to hold track names - currently 7M bytes

An additional issue is that tracks can vary in size and their names will vary in length.

Track size will largely depend on compression - but there is no industry standard track either.

Elvis I want to be Your Teddy Bear 1:46

Oldfield Tubular Bells side 1 25:00

B2 limits the track names to 64 letters but I tend to find that classical music collections have very long names so that can use up the name space before anything else.

The system does have a facility to dump these usage numbers so I have made a note to expose these in to the user in a future software release

Martin

[Clive Barrett]

Thanks very much Martin - that's very helpful and I am much clearer about the rationale. Juggling widely different values for the various parameters has its challenges. 

On Wednesday, 15 December 2021 at 11:40:03 UTC Daniel Taylor wrote:

Martin has just told us that "B2 limits the track names to 64 letters" but I think we were previously under the impression that it was around 170.  If 64 is correct, then that changes things for folks who prefer more information in their track names.

[Brennan Support]

Hello Clive

Martin Brennan here - the capacity is limited by several factors - which may be why the limits seem a bit ambiguous.

1) The disk capacity

2) The album array - currently 15,000 entries

3) The track array - currently 170,000 entries

4) The memory used to hold album names - currently 200k bytes

5) The memory used to hold track names - currently 7M bytes

An additional issue is that tracks can vary in size and their names will vary in length.

Track size will largely depend on compression - but there is no industry standard track either.

Elvis I want to be Your Teddy Bear 1:46

Oldfield Tubular Bells side 1 25:00

B2 limits the track names (but I cannot remember right now what that limit is) but I tend to find that classical music collections have very long names so that can use up the name space before anything else.

The system does have a facility to dump these usage numbers so I have made a note to expose these in to the user in a future software release

Martin

[Brennan Support]

Hi All

I was wrong about the track name length so I removed and reposted

Martin

[Peter Lowham]

Hi All,

I did some testing with regard to track name length on the B2 a while ago and I found that this should be limited to 170 characters.  The B2 will allow slightly longer length (up to 175 characters) but when I tried to go above 170 characters then I found that the B2 could start to behave slightly strangely such as playing one track while displaying the name of another unrelated track.

The JB7 Artist & Track name string is a maximum of 64 characters.

Regards,

Peter.

[PMB]

Hi All,

I found the same as Peter i.e. Artist and Track names can be up to 175 characters but this can (does) cause issues, so I  recommend keeping names to 170 characters maximum.

Paul

Brennan Support.