When Napster launched its six-million-track-deep MP3 store earlier this week, I wrote that depth of catalog is important but only to a point. The marginal value of the million least-popular songs is far from the value of the second million or the third million. People rarely get that deep into the catalog. Even with my out-of-the-mainstream tastes, I probably have no interest in much of any store's tracks and rarely want an album that a store does not have.
Just how often would I delve further than five million tracks into a download store's catalog? To find out I selected 16 albums to compare at five stores: Amazon.com MP3, eMusic, iTunes, Napster and Wal-Mart. The albums were a mix of titles I recently purchased (both CD and digital), CDs randomly pulled from a rack next to my computer and a couple local artists from Nashville that have independently released EPs.
The results show there is some difference between the stores' selection but a considerable difference in prices. What eMusic lacks in catalog it makes up for in price. Napster and iTunes had the best selection (just barely) but also had higher prices than eMusic and Amazon.com.
iTunes had 15 of the 16 titles, the best ratio of the five stores, but only five of those are available in MP3. Napster had 14 out of 16 and Amazon.com had 13 out of 16, and all of them MP3s. eMusic had 12 of the 16 and the lowest price by far. For the four albums not found at eMusic, the lowest prices can be found at Amazon.com.
The titles I picked are not Top 200 stuff but aren't the slowest-moving tracks in the stores. Cinema Verite is ranked 20,475 at Amazon.com. Fresh Pair of Eyes is ranked 17,522. The Bruno Pronsato EP is not at Amazon.com, but his Silver Cities album is there and has a ranking 117,036.
Napster deep catalog was missing one relatively popular album and one that is slower moving. It did not have Orbital's Live at Glastonbury, which is ranked 23,987 at Amazon.com. Nor did Napster have Justin Earle's The Good Life, which is ranked 657 at Amazon.com. To put those rankings in perspective, Amazon.com currently lists 445,176 albums and 5,230,187 songs.
A few notes about the titles. It's a small sample that represents only my own listening preferences. Somebody else would most certainly get different results based on their purchases and preferences. I lean toward music that is a bit out of the mainstream. Some of the titles have major music group distribution while some are distributed by companies such as IODA, Iris, Finetunes or CD Baby. I acquire a good deal of tracks at eMusic (65 per month) but included only a few albums in the survey that I acquired there.
And a couple of things about prices. I pay $15 a month for 65 tracks at eMusic. Because it's a subscription store, tracks and albums do not have assigned prices. For the sake of this exercise, I divided the $15 monthly fee by 60 (instead of 65 because I sometimes do not use all of my alloted downloads) to get an average track cost of $0.25. Album prices equal $0.25 times the number of tracks on the album. Lastly, Napster charges $9.95 for every album or EP regardless of the number of tracks. Rather than use $9.95 for every title Napster stocks, I calculated the cost of downloading each track individually at $0.99 apiece.
The above chart compares the prices of the albums that two stores have in common. For example, Napster and Amazon.com have 11 titles in common from this sample of 16 albums. For those 11 titles, Amazon.com's average price is $8.12 and Napster's average price is $8.67. eMusic's prices are by far the lowest. Of the stores that carry major labels, Amazon.com had the lowest prices, followed by Napster, iTunes and then Wal-Mart.
A combination of eMusic and Amazon.com nets 16 titles (100%) in stock. When thinking about getting an album, the best way to shop is to first visit eMusic and then go to Amazon.com. In only one case did Napster have a lower price than Amazon.com. That was Johann Johannsson's A User's Manual. Napster lets you download the tracks individually, Amazon.com does not. Since the album has only five tracks, Napster's price is far better (but far higher than the cost at eMusic, which also allows for individual track downloads).