For fellow people on HN, if your have not read Infinite Jest I very highly recommend the audiobook version of it. I was not able to get through it reading it as its such a large book but I found the audio version quite enjoyable.
How does the audiobook handle the endnotes?
I tried to read it once and the endnotes were often pretty important.
While there isn't a specific section covering endnotes, they are interspersed sparingly as tonal changes in the narrator's voice. This effect is used in other readings of his works and is easy to follow.